/**
\page templates_pg CMSIS-Core Device Templates

\details

Arm supplies CMSIS-Core device template files for the all supported Cortex-M processors and various compiler vendors.
Refer to the list of \ref tested_tools_sec for compliance.


These CMSIS-Core device template files include the following:
 - Register names of the Core Peripherals and names of the Core Exception Vectors.
 - Functions to access core peripherals, special CPU instructions and SIMD instructions (for Cortex-M4 and Cortex-M7)
 - Generic startup code and system configuration code.

The detailed file structure of the CMSIS-Core device templates is shown in the following picture.

\image html "CMSIS_CORE_Files.png" "CMSIS-Core File Structure"

\section CMSIS_Processor_files CMSIS-Core Processor Files 

The CMSIS-Core processor files provided by Arm are in the directory .\\CMSIS\\Core\\Include. These header files define all processor specific attributes do not need any modifications.
The <b>core_&lt;cpu&gt;.h</b> defines the core peripherals and provides helper functions that access the core registers. One file is available for each supported Cortex-M processor:

Header File      | Processor
:----------------|:------------------------------
core_cm0.h       | for the Cortex-M0 processor
core_cm0plus.h   | for the Cortex-M0+ processor
core_cm3.h       | for the Cortex-M3 processor
core_cm4.h       | for the Cortex-M4 processor
core_cm7.h       | for the Cortex-M7 processor
\if ARMv8M
core_cm23.h      | for the Cortex-M23 processor
core_cm33.h      | for the Cortex-M33 processor
core_cm35p.h     | for the Cortex-M35P processor
\endif 
\if ARMSC
core_sc000.h     | for the SecurCore SC000 processor
core_sc300.h     | for the SecurCore SC300 processor
\endif
\if ARMv8M
core_armv8mbl.h  | for the Armv8-M Baseline processor
core_armv8mml.h  | for the Armv8-M Mainline processor
\endif
\section device_examples Device Examples

The CMSIS Software Pack defines several devices that are based on the various processors. The device related CMSIS-Core files are in the directory .\\Device\\ARM
and include CMSIS-Core processor file explained before. The following sample devices are defined in the CMSIS-Pack description file <b>ARM.CMSIS.pdsc</b>:

Family             | Device             | Description
:------------------|:-------------------|:---------------------------------
ARM Cortex-M0      | ARMCM0             | Cortex-M0 based device
ARM Cortex-M0 plus | ARMCM0P            | Cortex-M0+ based device
ARM Cortex-M3      | ARMCM3             | Cortex-M3 based device
ARM Cortex-M4      | ARMCM4             | Cortex-M4 based device without floating-point hardware
ARM Cortex-M4      | ARMCM4_FP          | Cortex-M4 based device with floating-point hardware
ARM Cortex-M7      | ARMCM7             | Cortex-M4 based device without floating-point hardware
ARM Cortex-M7      | ARMCM7_FP          | Cortex-M7 based device with single precision floating-point unit (FPU)
ARM Cortex-M7      | ARMCM7_DP          | Cortex-M7 based device with double precision floating-point unit
ARM Cortex-M7      | ARMCM7             | Cortex-M7 based device without floating-point hardware
\if ARMv8M
ARM Cortex-M23     | ARMCM23            | Cortex-M23 based device without TrustZone
ARM Cortex-M23     | ARMCM23_TZ         | Cortex-M23 based device with TrustZone
ARM Cortex-M33     | ARMCM33            | Cortex-M33 based device without TrustZone, SIMD, FPU
ARM Cortex-M33     | ARMCM33_TZ         | Cortex-M33 based device with TrustZone, no SIMD, no FPU
ARM Cortex-M33     | ARMCM33_DSP_FP     | Cortex-M33 based device with SIMD, FPU, no TrustZone
ARM Cortex-M33     | ARMCM33_DSP_FP_TZ  | Cortex-M33 based device with TrustZone, SIMD, FPU
ARM Cortex-M35P    | ARMCM35P           | Cortex-M35P based device without TrustZone, SIMD, FPU
ARM Cortex-M35P    | ARMCM35P_TZ        | Cortex-M35P based device with TrustZone, no SIMD, no FPU
ARM Cortex-M35P    | ARMCM35P_DSP_FP    | Cortex-M35P based device with SIMD, FPU, no TrustZone
ARM Cortex-M35P    | ARMCM35P_DSP_FP_TZ | Cortex-M35P based device with TrustZone, SIMD, FPU
\endif
\if ARMSC
ARM SC000          | ARM SC000          | SC000 based device
ARM SC300          | ARM SC300          | SC300 based device
\endif
\if ARMv8M
ARMv8-M Baseline   | ARMv8MBL           | Armv8-M Baseline based device with TrustZone
ARMv8-M Mainline   | ARMv8MML           | Armv8-M Mainline based device with TrustZone
ARMv8-M Mainline   | ARMv8MML_DP        | Armv8-M Mainline based device with TrustZone and double precision FPU 
ARMv8-M Mainline   | ARMv8MML_SP        | Armv8-M Mainline based device with TrustZone and single precision FPU 
ARMv8-M Mainline   | ARMv8MML_DSP       | Armv8-M Mainline based device with TrustZone and SIMD
ARMv8-M Mainline   | ARMv8MML_DSP_DP    | Armv8-M Mainline based device with TrustZone, SIMD, and double precision FPU 
ARMv8-M Mainline   | ARMv8MML_DSP_SP    | Armv8-M Mainline based device with TrustZone, SIMD, and single precision FPU 
\endif

\section template_files_sec Template Files

To simplify the creation of CMSIS-Core device files, the following template files are provided that should be extended by the silicon vendor to reflect the actual device and device peripherals.
Silicon vendors add to these template files the following information:
 - <b>Device Peripheral Access Layer</b> that provides definitions for device-specific peripherals.
 - <b>Access Functions for Peripherals</b> (optional) that provides additional helper functions to access device-specific peripherals.
 - <b>Interrupt vectors</b> in the startup file that are device specific.

<table class="cmtable">
    <tr>
      <th>Template File</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Source\\ARM\\startup_Device.s</td>
      <td>Startup file template for Arm C/C++ Compiler.</td>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Source\\GCC\\startup_Device.s</td>
      <td>Startup file template for GNU GCC Arm Embedded Compiler.</td>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Source\\IAR\\startup_Device.s</td>
      <td>Startup file template for IAR C/C++ Compiler.</td>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Source\\system_Device.c</td>
      <td>Generic system_Device.c file for system configuration (i.e. processor clock and memory bus system).</td>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Include\\Device.h</td>
      <td>Generic device header file. Needs to be extended with the device-specific peripheral registers. Optionally functions that access the peripherals
      can be part of that file.</td>
    </tr>
    <tr>
      <td>.\\Device\\\_Template_Vendor\\Vendor\\Device\\Include\\system_Device.h</td>
      <td>Generic system device configuration include file.</td>
    </tr>
</table>


<b>Adapt Template Files to a Device</b>

The following steps describe how to adopt the template files to a specific device or device family.
Copy the complete all files in the template directory and replace:
  - directory name 'Vendor' with the abbreviation for the device vendor  e.g.: NXP.
  - directory name 'Device' with the specific device name e.g.: LPC17xx.
  - in the file names 'Device' with the specific device name e.g.: LPC17xx.

Each template file contains comments that start with \b ToDo: that describe a required modification.
The template files contain place holders:

<table class="cmtable">
    <tr>
      <th>Placeholder</th>
      <th>Replaced with</th>
    </tr>
    <tr>
      <td>&lt;Device&gt;</td>
      <td>the specific device name or device family name; i.e. LPC17xx.</td>
    </tr>
    <tr>
      <td>&lt;DeviceInterrupt&gt;</td>
      <td>a specific interrupt name of the device; i.e. TIM1 for Timer 1.</td>
    <tr>
      <td>&lt;DeviceAbbreviation&gt;</td>
      <td>short name or abbreviation of the device family; i.e. LPC.</td>
    </tr>
    <tr>
      <td>Cortex-M#</td>
      <td>the specific Cortex-M processor name; i.e. Cortex-M3.</td>
    </tr>
</table>


The device configuration of the template files is described in detail on the following pages:
  - \subpage startup_c_pg
  - \subpage startup_s_pg (deprecated)
  - \subpage system_c_pg
  - \subpage device_h_pg
\if ARMv8M
  - \subpage partition_h_pg
\endif  
*/

/*=======0=========1=========2=========3=========4=========5=========6=========7=========8=========9=========0=========1====*/
/**
\page startup_c_pg Startup File startup_<device>.c

The \ref startup_c_pg contains:
 - The reset handler which is executed after CPU reset and typically calls the \ref SystemInit function.
 - The setup values for the Main Stack Pointer (MSP).
 - Exception vectors of the Cortex-M Processor with weak functions that implement default routines.
 - Interrupt vectors that are device specific with weak functions that implement default routines.

The file exists for each supported toolchain and is the only tool-chain specific CMSIS file.

To adapt the file to a new device only the interrupt vector table needs to be extended with
the device-specific interrupt handlers. The naming convention for the interrupt handler names are
&lt;interrupt_name&gt;_IRQHandler.  This table needs to be consistent with \ref IRQn_Type that defines all the
IRQ numbers for each interrupt.

\b Example:

The following example shows the extension of the interrupt vector table for the LPC1100 device family.

\code
/*----------------------------------------------------------------------------
  Exception / Interrupt Handler
 *----------------------------------------------------------------------------*/
/* Exceptions */
void WAKEUP0_IRQHandler     (void) __attribute__ ((weak, alias("Default_Handler")));
void WAKEUP1_IRQHandler     (void) __attribute__ ((weak, alias("Default_Handler")));
void WAKEUP2_IRQHandler     (void) __attribute__ ((weak, alias("Default_Handler")));
// :
// :
void EINT1_IRQHandler       (void) __attribute__ ((weak, alias("Default_Handler")));
void EINT2_IRQHandler       (void) __attribute__ ((weak, alias("Default_Handler")));
// :
// :

/*----------------------------------------------------------------------------
  Exception / Interrupt Vector table
 *----------------------------------------------------------------------------*/
extern const pFunc __VECTOR_TABLE[240];
       const pFunc __VECTOR_TABLE[240] __VECTOR_TABLE_ATTRIBUTE = {
  (pFunc)(&__INITIAL_SP),                   /*     Initial Stack Pointer */
  Reset_Handler,                            /*     Reset Handler */
  NMI_Handler,                              /* -14 NMI Handler */
  HardFault_Handler,                        /* -13 Hard Fault Handler */
  MemManage_Handler,                        /* -12 MPU Fault Handler */
  BusFault_Handler,                         /* -11 Bus Fault Handler */
  UsageFault_Handler,                       /* -10 Usage Fault Handler */
  0,                                        /*     Reserved */
  0,                                        /*     Reserved */
  0,                                        /*     Reserved */
  0,                                        /*     Reserved */
  SVC_Handler,                              /*  -5 SVCall Handler */
  DebugMon_Handler,                         /*  -4 Debug Monitor Handler */
  0,                                        /*     Reserved */
  PendSV_Handler,                           /*  -2 PendSV Handler */
  SysTick_Handler,                          /*  -1 SysTick Handler */

  /* Interrupts */
  WAKEUP0_IRQHandler,                       /*   0 Wakeup PIO0.0 */
  WAKEUP1_IRQHandler,                       /*   1 Wakeup PIO0.1 */
  WAKEUP2_IRQHandler,                       /*   2 Wakeup PIO0.2 */
  // :
  // :
  EINT1_IRQHandler,                         /*  30 PIO INT1 */
  EINT2_IRQHandler,                         /*  31 PIO INT2 */
  // :
  // :
};
\endcode

\section startup_c_sec startup_Device.c Template File

A compiler agnostic \ref startup_c_sec for an Armv7-M processor like Cortex-M3 is shown below.
The C startup file relys on certain compiler specific preprocessor defines specified in CMSIS compiler headers:
 - \ref __INITIAL_SP
 - \ref __STACK_LIMIT
 - \ref __PROGRAM_START
 - \ref __VECTOR_TABLE
 - \ref __VECTOR_TABLE_ATTRIBUTE
 
\verbinclude "Source\startup_Device.c"
*/

/*=======0=========1=========2=========3=========4=========5=========6=========7=========8=========9=========0=========1====*/
/**
\page startup_s_pg Startup File startup_<device>.s (deprecated)

The \ref startup_s_pg contains:
 - The reset handler which is executed after CPU reset and typically calls the \ref SystemInit function.
 - The setup values for the Main Stack Pointer (MSP).
 - Exception vectors of the Cortex-M Processor with weak functions that implement default routines.
 - Interrupt vectors that are device specific with weak functions that implement default routines.

The file exists for each supported toolchain and is the only tool-chain specific CMSIS file.

To adapt the file to a new device only the interrupt vector table needs to be extended with
the device-specific interrupt handlers. The naming convention for the interrupt handler names are
&lt;interrupt_name&gt;_IRQHandler.  This table needs to be consistent with \ref IRQn_Type that defines all the
IRQ numbers for each interrupt.

\b Example:

The following example shows the extension of the interrupt vector table for the LPC1100 device family.

\code
                ; External Interrupts
                DCD     WAKEUP0_IRQHandler       ; 16+ 0: Wakeup PIO0.0
                DCD     WAKEUP1_IRQHandler       ; 16+ 1: Wakeup PIO0.1
                DCD     WAKEUP2_IRQHandler       ; 16+ 2: Wakeup PIO0.2
                 :       :
                 :       :
                DCD     EINT1_IRQHandler         ; 16+30: PIO INT1
                DCD     EINT0_IRQHandler         ; 16+31: PIO INT0
   :
   :
                EXPORT  WAKEUP0_IRQHandler       [WEAK]
                EXPORT  WAKEUP1_IRQHandler       [WEAK]
                EXPORT  WAKEUP2_IRQHandler       [WEAK]
                 :       :
                 :       :
                EXPORT  EINT1_IRQHandler         [WEAK]
                EXPORT  EINT0_IRQHandler         [WEAK]

WAKEUP0_IRQHandler
WAKEUP1_IRQHandler
WAKEUP1_IRQHandler
      :
      :
EINT1_IRQHandler
EINT0_IRQHandler
                B       .

\endcode

\section startup_s_sec startup_Device.s Template File

An Arm Compiler \ref startup_s_sec for an Armv7-M processor like Cortex-M3 is shown below.
The files for other compiler vendors differ slightly in the syntax, but not in the overall structure.

\verbinclude "Source\ARM\startup_Device.s"
*/

/*=======0=========1=========2=========3=========4=========5=========6=========7=========8=========9=========0=========1====*/
/**
\page system_c_pg System Configuration Files system_<device>.c and system_<device>.h

The \ref system_c_pg provides as a minimum the functions described under \ref system_init_gr.
These functions are device specific and need adaptations. In addition, the file might have
configuration settings for the device such as XTAL frequency or PLL prescaler settings.

For devices with external memory BUS the system_<device>.c also configures the BUS system.

The silicon vendor might expose other functions (i.e. for power configuration) in the system_<device>.c file.
In case of additional features the function prototypes need to be added to the system_<device>.h header file.

\section system_Device_sec system_Device.c Template File

The \ref system_Device_sec for the Cortex-M3 is shown below.

\verbinclude "Source\system_Device.c"

\section system_Device_h_sec system_Device.h Template File

The system_<device>.h header file contains prototypes to access the public functions in the system_<device>.c file.
The \ref system_Device_h_sec is shown below.

\verbinclude "Include\system_Device.h"

*/

/*=======0=========1=========2=========3=========4=========5=========6=========7=========8=========9=========0=========1====*/
/**
\page device_h_pg Device Header File <device.h>

The \ref device_h_pg contains the following sections that are device specific:

  - \ref interrupt_number_sec provides interrupt numbers (IRQn) for all exceptions and interrupts of the device.
  - \ref core_config_sect reflect the features of the device.
  - \ref device_access provides definitions for the \ref peripheral_gr to all device peripherals. It contains all data structures and the address mapping for device-specific peripherals.
  - <b>Access Functions for Peripherals (optional)</b> provide additional helper functions for peripherals that are useful for programming of these peripherals. Access Functions may be provided as inline functions or can be extern references to a device-specific library provided by the silicon vendor.

<a href="Modules.html">\b Reference </a> describes the standard features and functions of the \ref device_h_pg in detail.

\section interrupt_number_sec Interrupt Number Definition

\ref device_h_pg contains the enumeration \ref IRQn_Type that defines all exceptions and interrupts of the device.
  - Negative IRQn values represent processor core exceptions (internal interrupts).
  - Positive IRQn values represent device-specific exceptions (external interrupts). The first device-specific interrupt has the IRQn value 0.
    The IRQn values needs extension to reflect the device-specific interrupt vector table in the \ref startup_s_pg.

\b Example:

The following example shows the extension of the interrupt vector table for the LPC1100 device family.

\code
typedef enum IRQn
{
/******  Cortex-M0 Processor Exceptions Numbers ***************************************************/
  NonMaskableInt_IRQn           = -14,      /*!< 2 Non Maskable Interrupt                         */
  HardFault_IRQn                = -13,      /*!< 3 Cortex-M0 Hard Fault Interrupt                 */
  SVCall_IRQn                   = -5,       /*!< 11 Cortex-M0 SV Call Interrupt                   */
  PendSV_IRQn                   = -2,       /*!< 14 Cortex-M0 Pend SV Interrupt                   */
  SysTick_IRQn                  = -1,       /*!< 15 Cortex-M0 System Tick Interrupt               */

/******  LPC11xx/LPC11Cxx Specific Interrupt Numbers **********************************************/
  WAKEUP0_IRQn                  = 0,        /*!< All I/O pins can be used as wakeup source.       */
  WAKEUP1_IRQn                  = 1,        /*!< There are 13 pins in total for LPC11xx           */
  WAKEUP2_IRQn                  = 2,
                 :       :
                 :       :
  EINT1_IRQn                    = 30,       /*!< External Interrupt 1 Interrupt                   */
  EINT0_IRQn                    = 31,       /*!< External Interrupt 0 Interrupt                   */
} IRQn_Type;
\endcode

\section core_config_sect Configuration of the Processor and Core Peripherals

The \ref device_h_pg  configures the Cortex-M or SecurCore processor and the core peripherals with <i>\#defines</i>
that are set prior to including the file <b>core_<cpu>.h</b>.

The following tables list the <i>\#defines</i> along with the possible values for each processor core.
If these <i>\#defines</i> are missing default values are used.

\b core_cm0.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__CM0_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2</td>
      <td>2</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>

\b core_cm0plus.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__CM0PLUS_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2</td>
      <td>2</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>

\b core_cm3.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__CM3_REV</td>
      <td>0x0101 | 0x0200</td>
      <td>0x0200</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2 .. 8</td>
      <td>4</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>

\b core_cm4.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__CM4_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2 .. 8</td>
      <td>4</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__FPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a FPU is present or not</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>

\b core_cm7.h
<table class="cmtable" summary="">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__CM7_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2 .. 8</td>
      <td>4</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
    <tr>
      <td>__FPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a FPU is present or not. See <b>__FPU_DP</b> description below.</td>
    </tr>
    <tr>
      <td>__FPU_DP</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>The combination of the defines <b>__FPU_PRESENT</b> and <b>__FPU_DP</b>
         determine the whether the FPU is with single or double precision as shown in the table below.
       \n\n
       <table class="cmtable" summary="">
     <tr  bgcolor="cyan">
           <td><b>__FPU_PRESENT</b></td>
       <td><b>__FPU_DP</b></td>
       <td><b>Description</b></td>
     </tr>
     <tr>
       <td align="center">0</td>
       <td align="center"><i>ignored</i></td>
       <td>Processor has no FPU. The value set for <b>__FPU_DP</b> has no influence. </td>
     </tr>
     <tr>
       <td align="center">1</td>
       <td align="center">0</td>
       <td>Processor with FPU with single precision. The file <b>ARMCM7_SP.h</b> has preconfigured settings for this combination.</td>
     </tr>
     <tr>
       <td align="center">1</td>
       <td align="center">1</td>
           <td>Processor with FPU with double precision. The file <b>ARMCM7_DP.h</b> has preconfigured settings for this combination.</td>
     </tr>
     </table>
    </td>
    </tr>
    <tr>
      <td>__ICACHE_PRESENT</td>
      <td>0 .. 1</td>
      <td>1</td>
      <td>Instruction Chache present or not</td>
    </tr>
    <tr>
      <td>__DCACHE_PRESENT</td>
      <td>0 .. 1</td>
      <td>1</td>
      <td>Data Chache present or not</td>
    </tr>
    <tr>
      <td>__DTCM_PRESENT</td>
      <td>0 .. 1</td>
      <td>1</td>
      <td>Data Tightly Coupled Memory is present or not</td>
    </tr>
</table>

\if ARMSC
\b core_sc000.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__SC000_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2</td>
      <td>2</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>
\endif 

\if ARMSC
\b core_sc300.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__SC300_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2 .. 8</td>
      <td>4</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>
\endif 

\if ARMv8M
\b core_CM23.h or \b core_ARMv8MBL.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__ARMv8MBL_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__SAUREGION_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if SAU regions are present or not</td>
    </tr>
    <tr>
      <td>__VTOR_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a VTOR register is present or not</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2</td>
      <td>2</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>
\endif

\if ARMv8M
\b core_CM33.h or \b core_cm35p.h or \b core_ARMv8MML.h
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>__ARMv8MML_REV</td>
      <td>0x0000</td>
      <td>0x0000</td>
      <td>Core revision number ([15:8] revision number, [7:0] patch number)</td>
    </tr>
    <tr>
      <td>__MPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a MPU is present or not</td>
    </tr>
    <tr>
      <td>__SAUREGION_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if SAU regions are present or not</td>
    </tr>
    <tr>
      <td>__FPU_PRESENT</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Defines if a FPU is present or not</td>
    </tr>
    <tr>
      <td>__NVIC_PRIO_BITS</td>
      <td>2 .. 8</td>
      <td>3</td>
      <td>Number of priority bits implemented in the NVIC (device specific)</td>
    </tr>
    <tr>
      <td>__Vendor_SysTickConfig</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>If this define is set to 1, then the default <b>SysTick_Config</b> function
    is excluded. In this case, the file <i><b>device.h</b></i>
    must contain a vendor specific implementation of this function.</td>
    </tr>
</table>
\endif

\b Example

The following code exemplifies the configuration of the Cortex-M4 Processor and Core Peripherals.

\code
#define __CM4_REV                 0x0001    /* Core revision r0p1                                 */
#define __MPU_PRESENT             1         /* MPU present or not                                 */
#define __NVIC_PRIO_BITS          3         /* Number of Bits used for Priority Levels            */
#define __Vendor_SysTickConfig    0         /* Set to 1 if different SysTick Config is used       */
#define __FPU_PRESENT             1         /* FPU present or not                                 */
.
.
#include <core_cm4.h>                       /* Cortex-M4 processor and core peripherals           */
\endcode


\section core_version_sect   CMSIS Version and Processor Information

Defines in the core_<i>cpu</i>.h file identify the version of the CMSIS-Core (Cortex-M) and the processor used.
The following shows the defines in the various core_<i>cpu</i>.h files that may be used in the \ref device_h_pg
to verify a minimum version or ensure that the right processor core is used.

\b core_cm0.h
\code
#define __CM0_CMSIS_VERSION_MAIN  (5U)                                 /* [31:16] CMSIS HAL main version */
#define __CM0_CMSIS_VERSION_SUB   (0U)                                 /* [15:0]  CMSIS HAL sub version */
#define __CM0_CMSIS_VERSION       ((__CM0_CMSIS_VERSION_MAIN << 16U) | \
                                    __CM0_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */
 
#define __CORTEX_M                (0U)                                 /* Cortex-M Core */
\endcode


\b core_cm0plus.h
\code
#define __CM0PLUS_CMSIS_VERSION_MAIN  (5U)                                  /* [31:16] CMSIS HAL main version */
#define __CM0PLUS_CMSIS_VERSION_SUB   (0U)                                  /* [15:0]  CMSIS HAL sub version */
#define __CM0PLUS_CMSIS_VERSION       ((__CM0P_CMSIS_VERSION_MAIN << 16U) | \
                                        __CM0P_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */
 
#define __CORTEX_M                    (0U)                                  /* Cortex-M Core */
\endcode


\b core_cm1.h
\code
#define __CM1_CMSIS_VERSION_MAIN  (__CM_CMSIS_VERSION_MAIN)              /*!< \deprecated [31:16] CMSIS HAL main version */
#define __CM1_CMSIS_VERSION_SUB   (__CM_CMSIS_VERSION_SUB)               /*!< \deprecated [15:0]  CMSIS HAL sub version */
#define __CM1_CMSIS_VERSION       ((__CM1_CMSIS_VERSION_MAIN << 16U) | \
                                    __CM1_CMSIS_VERSION_SUB           )  /*!< \deprecated CMSIS HAL version number */

#define __CORTEX_M                (1U)                                   /*!< Cortex-M Core */
\endcode

\b core_cm3.h
\code
#define __CM3_CMSIS_VERSION_MAIN  (5U)                                 /* [31:16] CMSIS HAL main version */
#define __CM3_CMSIS_VERSION_SUB   (0U)                                 /* [15:0]  CMSIS HAL sub version */
#define __CM3_CMSIS_VERSION       ((__CM3_CMSIS_VERSION_MAIN << 16U) | \
                                    __CM3_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */
 
#define __CORTEX_M                (3U)                                 /* Cortex-M Core */
\endcode

\b core_cm4.h
\code
#define __CM4_CMSIS_VERSION_MAIN  (5U)                                 /* [31:16] CMSIS HAL main version */
#define __CM4_CMSIS_VERSION_SUB   (0U)                                 /* [15:0]  CMSIS HAL sub version */
#define __CM4_CMSIS_VERSION       ((__CM4_CMSIS_VERSION_MAIN << 16U) | \
                                    __CM4_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */
 
#define __CORTEX_M                (4U)                                 /* Cortex-M Core */
\endcode

\b core_cm7.h
\code
#define __CM7_CMSIS_VERSION_MAIN  (5U)                                 /* [31:16] CMSIS HAL main version */
#define __CM7_CMSIS_VERSION_SUB   (0U)                                 /* [15:0]  CMSIS HAL sub version */
#define __CM7_CMSIS_VERSION       ((__CM7_CMSIS_VERSION_MAIN << 16U) | \
                                    __CM7_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */
 
#define __CORTEX_M                (7U)                                 /* Cortex-M Core */
\endcode

\if ARMSC
\b core_sc000.h
\code
#define __SC000_CMSIS_VERSION_MAIN  (5U)                                   /* [31:16] CMSIS HAL main version */
#define __SC000_CMSIS_VERSION_SUB   (0U)                                   /* [15:0]  CMSIS HAL sub version */
#define __SC000_CMSIS_VERSION       ((__SC000_CMSIS_VERSION_MAIN << 16U) | \
                                      __SC000_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */

#define __CORTEX_SC                 (0U)                                   /* Cortex secure core */
\endcode
\endif 

\if ARMSC
\b core_sc300.h
\code
#define __SC300_CMSIS_VERSION_MAIN  (5U)                                   /* [31:16] CMSIS HAL main version */
#define __SC300_CMSIS_VERSION_SUB   (0U)                                   /* [15:0]  CMSIS HAL sub version */
#define __SC300_CMSIS_VERSION       ((__SC300_CMSIS_VERSION_MAIN << 16U) | \
                                      __SC300_CMSIS_VERSION_SUB          ) /* CMSIS HAL version number */

#define __CORTEX_SC                 (300U)                                 /* Cortex secure core */
\endcode
\endif 

\if ARMv8M
\b core_ARMv8MBL.h
\code
#define __ARMv8MBL_CMSIS_VERSION_MAIN  (5U)                                       /* [31:16] CMSIS HAL main version */
#define __ARMv8MBL_CMSIS_VERSION_SUB   (0U)                                       /* [15:0]  CMSIS HAL sub version */
#define __ARMv8MBL_CMSIS_VERSION       ((__ARMv8MBL_CMSIS_VERSION_MAIN << 16U) | \
                                         __ARMv8MBL_CMSIS_VERSION_SUB           ) /* CMSIS HAL version number */
 
#define __CORTEX_M                     (tbd)                                      /* Cortex secure core */
\endcode
\endif 

\if ARMv8M
\b core_ARMv8MML.h
\code
#define __ARMv8MML_CMSIS_VERSION_MAIN  (5U)                                       /* [31:16] CMSIS HAL main version */
#define __ARMv8MML_CMSIS_VERSION_SUB   (0U)                                       /* [15:0]  CMSIS HAL sub version */
#define __ARMv8MML_CMSIS_VERSION       ((__ARMv8MML_CMSIS_VERSION_MAIN << 16U) | \
                                         __ARMv8MML_CMSIS_VERSION_SUB           ) /* CMSIS HAL version number */
 
#define __CORTEX_M                     (tbd)                                      /* Cortex secure core */
\endcode
\endif 

\section device_access Device Peripheral Access Layer

The \ref device_h_pg contains for each peripheral:
 - Register Layout Typedef
 - Base Address
 - Access Definitions

The section \ref peripheral_gr shows examples for peripheral definitions.

\section device_h_sec Device.h Template File

The silicon vendor needs to extend the Device.h template file with the CMSIS features described above.
In addition the \ref device_h_pg may contain functions to access device-specific peripherals.
The \ref system_Device_h_sec which is provided as part of the CMSIS specification is shown below.

\verbinclude "Include\Device.h"

*/



/*=======0=========1=========2=========3=========4=========5=========6=========7=========8=========9=========0=========1====*/
/**
\if ARMv8M \page partition_h_pg System Partition Header File partition_<device>.h

The \ref partition_h_pg contains the initial setup of the TrustZone hardware in an Armv8-M system.
The function \ref TZ_SAU_Setup is call from \ref SystemInit and uses the settings in this file to 
initialize the Secure Attribute Unit (SAU) and define non-secure interrupts (register NVIC_INIT_ITNS).
The following initializations are performed:

  - \ref sau_ctrlregister_sec provides settings for the SAU CTRL register.
  - \ref sau_regions_sect provides configuration of the SAU Address Regions.
  - \ref sau_sleepexception_sec provides device-specific deepsleep and exception settings.
  - \ref sau_interrupttarget_sec provides device-specific interrupt target settings.

\section sau_ctrlregister_sec  SAU CTRL register settings
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>SAU_INIT_CTRL</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>Initialize SAU CTRL register or not
           - 0: do not initialize SAU CTRL register
           - 1: initialize SAU CTRL register</td>
    </tr>
    <tr>
      <td>SAU_INIT_CTRL_ENABLE</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>enable/disable the SAU
           - 0: disable SAU
           - 1: enable SAU</td>
    </tr>
    <tr>
      <td>SAU_INIT_CTRL_ALLNS</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>value for SAU_CTRL register bit ALLNS
           - 0: all Memory is Secure
           - 1: all Memory is Non-Secure</td>
    </tr>
</table>

\section sau_regions_sect  Configuration of the SAU Address Regions
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>SAU_REGIONS_MAX</td>
      <td>0 .. tbd</td>
      <td>8</td>
      <td>maximum number of SAU regions</td>
    </tr>
    <tr>
      <td>SAU_INIT_REGION<number></td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>initialize SAU region or not
           - 0: do not initialize SAU region
           - 1: initialize SAU region</td>
    </tr>
    <tr>
      <td>SAU_INIT_START<number></td>
      <td>0x00000000 .. 0xFFFFFFE0\n
          [in steps of 32]</td>
      <td>0x00000000</td>
      <td>region start address</td>
    </tr>
    <tr>
      <td>SAU_INIT_END<number></td>
      <td>0x00000000 .. 0xFFFFFFE0\n
          [in steps of 32]</td>
      <td>0x00000000</td>
      <td>region start address</td>
    </tr>
    <tr>
      <td>SAU_INIT_NSC<number></td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>SAU region attribute
           - 0: Non-Secure
           - 1: Secure, Non-Secure callable</td>
    </tr>
</table>

The range of \<number\> is from 0 .. SAU_REGIONS_MAX.
A set of these macros must exist for each \<number\>.

The following example shows a set of SAU region macros.

\code
#define SAU_REGIONS_MAX   8                 /* Max. number of SAU regions */
 
#define SAU_INIT_REGION0    1
#define SAU_INIT_START0     0x00000000      /* start address of SAU region 0 */
#define SAU_INIT_END0       0x001FFFE0      /* end address of SAU region 0 */
#define SAU_INIT_NSC0       1
 
#define SAU_INIT_REGION1    1
#define SAU_INIT_START1     0x00200000      /* start address of SAU region 1 */
#define SAU_INIT_END1       0x003FFFE0      /* end address of SAU region 1 */
#define SAU_INIT_NSC1       0
 
#define SAU_INIT_REGION2    1
#define SAU_INIT_START2     0x20200000      /* start address of SAU region 2 */
#define SAU_INIT_END2       0x203FFFE0      /* end address of SAU region 2 */
#define SAU_INIT_NSC2       0
 
#define SAU_INIT_REGION3    1
#define SAU_INIT_START3     0x40000000      /* start address of SAU region 3 */
#define SAU_INIT_END3       0x40040000      /* end address of SAU region 3 */
#define SAU_INIT_NSC3       0
 
#define SAU_INIT_REGION4    0
#define SAU_INIT_START4     0x00000000      /* start address of SAU region 4 */
#define SAU_INIT_END4       0x00000000      /* end address of SAU region 4 */
#define SAU_INIT_NSC4       0
 
#define SAU_INIT_REGION5    0
#define SAU_INIT_START5     0x00000000      /* start address of SAU region 5 */
#define SAU_INIT_END5       0x00000000      /* end address of SAU region 5 */
#define SAU_INIT_NSC5       0
 
#define SAU_INIT_REGION6    0
#define SAU_INIT_START6     0x00000000      /* start address of SAU region 6 */
#define SAU_INIT_END6       0x00000000      /* end address of SAU region 6 */
#define SAU_INIT_NSC6       0
 
#define SAU_INIT_REGION7    0
#define SAU_INIT_START7     0x00000000      /* start address of SAU region 7 */
#define SAU_INIT_END7       0x00000000      /* end address of SAU region 7 */
#define SAU_INIT_NSC7       0
\endcode


\section sau_sleepexception_sec  Configuration of Sleep and Exception behaviour
<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>CSR_INIT_DEEPSLEEPS</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>value for SCB_CSR register bit DEEPSLEEPS
           - 0: Deep Sleep can be enabled by Secure and Non-Secure state
           - 1: Deep Sleep can be enabled by Secure state only</td>
    </tr>
    <tr>
      <td>AIRCR_INIT_SYSRESETREQS</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>value for SCB_AIRCR register bit SYSRESETREQS
           - 0: System reset request accessible from Secure and Non-Secure state
           - 1: System reset request accessible from Secure state only</td>
    </tr>
    <tr>
      <td>AIRCR_INIT_PRIS</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>value for SCB_AIRCR register bit PRIS
           - 0: Priority of Non-Secure exceptions is Not altered
           - 1: Priority of Non-Secure exceptions is Lowered to 0x80-0xFF</td>
    </tr>
    <tr>
      <td>AIRCR_INIT_BFHFNMINS</td>
      <td>0 .. 1</td>
      <td>0</td>
      <td>value for SCB_AIRCR register bit BFHFNMINS
           - 0: BusFault, HardFault, and NMI target are Secure state
           - 1: BusFault, HardFault, and NMI target are Non-Secure state</td>
    </tr>
</table>

\section sau_interrupttarget_sec Configuration of Interrupt Target settings

Each interrupt has a configuration bit that defines the execution
in Secure or Non-secure state. The Non-Secure interrupts have a separate
vector table.  Refer to \ref Model_TrustZone for more information.

<table class="cmtable">
    <tr>
      <th>\#define</th>
      <th>Value Range</th>
      <th>Default</th>
      <th>Description</th>
    </tr>
    <tr>
      <td>NVIC_INIT_ITNS<number></td>
      <td>0x00000000 .. 0xFFFFFFFF\n
          [each bit represents an interrupt]</td>
      <td>0x00000000</td>
      <td>Interrupt vector target
           - 0: Secure state
           - 1: Non-Secure state</td>
    </tr>
</table>

The range of \<number\> is 0 .. (\<number of external interrupts\> + 31) / 32.

The following example shows the configuration for a maximum of 64 external interrupts.

\code
#define NVIC_INIT_ITNS0      0x0000122B
#define NVIC_INIT_ITNS1      0x0000003A
\endcode

\endif
*/


*/