| CMSIS-Core (Cortex-A) CMSIS-Core support for Cortex-A processor-based devices |

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API Reference
Here is a list of all modules:
[detail level 1 2 3]

CMSIS SIMD Intrinsics |
System and Clock Configuration | Functions for system and clock setup available in system_device.c
►Core Register Access | Functions to access the Cortex-A core registers
►Auxiliary Control Register (ACTLR) | The ACTLR provides IMPLEMENTATION DEFINED configuration and control options
ACTLR Bits | Bit position and mask macros
Cache and branch predictor maintenance operations | This section describes the cache and branch predictor maintenance operations
►Configuration Base Address Register (CBAR) | Takes the physical base address value of the memory-mapped SCU peripherals at reset from the external signal PERIPHBASE[31:13]
CBAR Bits | Bit position and mask macros
►Coprocessor Access Control Register (CPACR) | The CPACR controls access to coprocessors CP0 to CP13
CPACR Bits | Bit position and mask macros
CPACR CP field values | Valid values for CPACR CP field
►Current Program Status Register (CPSR) | The Current Program Status Register (CPSR) holds processor status and control information
CPSR Bits | Bit position and mask macros
CPSR M field values | Valid values for CPSR M field
►Data Fault Status Register (DFSR) | The DFSR holds status information about the last data fault
ACTLR Bits | Bit position and mask macros
►Domain Access Control Register (DACR) | DACR defines the access permission for each of the sixteen memory domains
DACR Bits | Bit position and mask macros
DACR Dn field values | Valid values for DACR Dn field
Floating-Point Exception Control register (FPEXC) | Provides a global enable for the Advanced SIMD and Floating-point (VFP) Extensions, and indicates how the state of these extensions is recorded
►Floating-point Status and Control Register (FPSCR) | Provides floating-point system status information and control
FPSCR Bits | Bit position and mask macros
►Instruction Fault Status Register (IFSR) | The IFSR holds status information about the last instruction fault
IFSR Bits | Bit position and mask macros
►Interrupt Status Register (ISR) | The ISR shows whether an IRQ, FIQ, or external abort is pending
ISR Bits | Bit position and mask macros
Multiprocessor Affinity Register (MPIDR) | In a multiprocessor system, the MPIDR provides an additional processor identification mechanism for scheduling purposes, and indicates whether the implementation includes the Multiprocessing Extensions
Counter Frequency register (CNTFRQ) | Indicates the clock frequency of the system counter
PL1 Physical Timer Control register (CNTP_CTL) | The control register for the physical timer
PL1 Physical Timer Compare Value register (CNTP_CVAL) | Holds the 64-bit compare value for the PL1 physical timer
PL1 Physical Timer Value register (CNTP_TVAL) | Holds the timer value for the PL1 physical timer
PL1 Physical Count register (CNTPCT) | Holds the 64-bit physical count value
Stack Pointer (SP/R13) | The processor uses SP as a pointer to the active stack
►System Control Register (SCTLR) | The SCTLR provides the top level control of the system, including its memory system
SCTLR Bits | Bit position and mask macros
TLB maintenance operations | This section describes the TLB operations that are implemented on all Armv7-A implementations
Translation Table Base Registers (TTBR0/TTBR1) | TTBRn holds the base address of translation table n, and information about the memory it occupies
Vector Base Address Register (VBAR) | When high exception vectors are not selected, the VBAR holds the exception base address for exceptions that are not taken to Monitor mode or to Hyp mode
Monitor Vector Base Address Register (MVBAR) | The MVBAR holds the exception base address for all exceptions that are taken to Monitor mode
Peripheral Access | Naming conventions and optional features for accessing peripherals
Version Control | Version #define symbols for CMSIS release specific C/C++ source code
►Core Peripherals |
CMSIS Core Register Access Functions |
Generic Interrupt Controller Functions | The Generic Interrupt Controller Functions grant access to the configuration, control and status registers of the Generic Interrupt Controller (GIC)
L1 Cache Functions | L1 Cache Functions give support to enable, clean and invalidate level 1 instruction and data caches, as well as to enable branch target address cache
L2C-310 Cache Controller Functions | L2C-310 Cache Controller gives access to functions for level 2 cache maintenance. Reference: Level 2 Cache Controller L2C-310 Technical Reference Manual
Generic Physical Timer Functions | Generic Physical Timer Functions allow to control privilege level 1 physical timer registers on Generic Timer for Cortex-A7 class devices. Reference: Cortex-A7 MPCore Technical Reference Manual
Private Timer Functions | Private Timer Functions controls private timer registers present on Cortex-A5 and A9 class devices. References: Cortex-A5 MPCore Technical Reference Manual, Cortex-A9 MPCore Technical Reference Manual
►Memory Management Unit Functions | MMU Functions provide control of the Memory Management Unit using translation tables and attributes of different regions of the physical memory map. Reference: Architecture Reference Manual Reference Manual - Armv7-A and Armv7-R edition
MMU Defines and Structs | Defines and structures that relate to the Memory Management Unit
Floating Point Unit Functions | FPU Functions enable the use of Floating Point instructions and extensions. Reference: Architecture Reference Manual Reference Manual - Armv7-A and Armv7-R edition
Compiler Control | Compiler agnostic #define symbols for generic C/C++ source code
Intrinsic Functions | Functions that generate specific Cortex-A CPU Instructions
►Interrupts and Exceptions | Generic functions to access the Interrupt Controller
IRQ Mode Bit-Masks | Configure interrupt line mode
IRQ Priority Bit-Masks | Definitions used by interrupt priority functions