User guide

System Control
ARM DDI 0337I Copyright © 2005-2008, 2010 ARM Limited. All rights reserved. 4-3
ID072410 Non-Confidential
4.2 Register summary
Table 4-1 shows the system control registers. Registers not described in this chapter are
described in the ARMv7-M Architecture Reference Manual
Table 4-1 System control registers
Address Name Type Reset Description
0xE000E008 ACTLR RW 0x00000000 Auxiliary Control Register, ACTLR on page 4-5
0xE000E010 STCSR RW 0x00000000 SysTick Control and Status Register
0xE000E014 STRVR RW Unknown SysTick Reload Value Register
0xE000E018 STCVR RW clear Unknown SysTick Current Value Register
0xE000E01C STCR RO Implementation specific SysTick Calibration Value Register
0xE000ED00 CPUID RO 0x412FC231 CPUID Base Register, CPUID on page 4-5
0xE000ED04 ICSR RW or RO 0x00000000 Interrupt Control and State Register
0xE000ED08 VTOR RW 0x00000000 Vector Table Offset Register
0xE000ED0C AIRCR RW
0x00000000
a
Application Interrupt and Reset Control Register
0xE000ED10 SCR RW 0x00000000 System Control Register
0xE000ED14 CCR RW 0x00000200 Configuration and Control Register.
0xE000ED18 SHPR1 RW 0x00000000 System Handler Priority Register 1
0xE000ED1C SHPR2 RW 0x00000000 System Handler Priority Register 2
0xE000ED20 SHPR3 RW 0x00000000 System Handler Priority Register 3
0xE000ED24 SHCSR RW 0x00000000 System Handler Control and State Register
0xE000ED28 CFSR RW 0x00000000 Configurable Fault Status Registers
0xE000ED2C HFSR RW 0x00000000 HardFault Status Register
0xE000ED30 DFSR RW 0x00000000 Debug Fault Status Register
0xE000ED34 MMFAR RW Unknown
MemManage Fault Address Register
b
0xE000ED38 BFAR RW Unknown
BusFault Address Register
b
0xE000ED3C AFSR RW 0x00000000 Auxiliary Fault Status Register, AFSR on page 4-6
0xE000ED40 ID_PFR0 RO 0x00000030 Processor Feature Register 0
0xE000ED44 ID_PFR1 RO 0x00000200 Processor Feature Register 1
0xE000ED48 ID_DFR0 RO 0x00100000
Debug Features Register 0
c
0xE000ED4C ID_AFR0 RO 0x00000000 Auxiliary Features Register 0
0xE000ED50 ID_MMFR0 RO 0x00100030 Memory Model Feature Register 0
0xE000ED54 ID_ MMFR1 RO 0x00000000 Memory Model Feature Register 1
0xE000ED58 ID_MMFR2 RO 0x01000000 Memory Model Feature Register 2
0xE000ED5C ID_MMFR3 RO 0x00000000 Memory Model Feature Register 3
0xE000ED60 ID_ISAR0 RO 0x01100110 Instruction Set Attributes Register 0