Filter
Top Products
Debug
ARM DDI 0363E Copyright © 2009 ARM Limited. All rights reserved. 11-6
ID013010 Non-Confidential, Unrestricted Access
Note
The CP14 debug instructions are defined as having Opcode_1 set to 0.
11.3.4 Memory-mapped registers
Table 11-3 shows the complete list of memory-mapped registers accessible at the APB slave
interface.
Note
You must ensure that the base address of this 4KB register map is aligned to a 4KB boundary in
physical memory.
Table 11-2 CP14 debug registers summary
Instruction Mnemonic Description
MRC p14, 0, <Rd>, c0, c0, 0
DIDR Debug Identification Register. See CP14 c0, Debug ID Register on
page 11-10.
MRC p14, 0, <Rd>, c1, c0, 0
DRAR Debug ROM Address Register. See CP14 c0, Debug ROM Address
Register on page 11-12.
MRC p14, 0, <Rd>, c2, c0, 0
DSAR Debug Self Address Register. See CP14 c0, Debug Self Address
Offset Register on page 11-12.
MRC p14, 0, <Rd>, c0, c5, 0
STC p14, c5, <addressing mode>
DTRRX Host to Target Data Transfer Register. See Data Transfer Register on
page 11-18.
MCR p14, 0, <Rd>, c0, c5, 0
LDC p14, c5, <addressing mode>
DTRTX Target to Host Data Transfer Register. See Data Transfer Register on
page 11-18.
MRC p14, 0, <Rd>, c0, c1, 0
MRC p14, 0, PC, c0, c1, 0
DSCR Debug Status and Control Register. See CP14 c1, Debug Status and
Control Register on page 11-14.
Table 11-3 Debug memory-mapped registers
Offset
(hex)
Register
number
Access Mnemonic Description
0x000
c0 R DIDR CP14 c0, Debug ID Register on page 11-10
0x004-0x014
c1-c5 R - RAZ
0x18
c6 RW WFAR Watchpoint Fault Address Register on page 11-19
0x01C
c7 RW VCR Vector Catch Register on page 11-19
0x020
c8 R - RAZ
0x024
c9 RW ECR Not implemented in this processor. Reads as zero.
0x028
c10 RW DSCCR Debug State Cache Control Register on page 11-21.
0x02C
c11 R - RAZ
0x030-0x07C
c12-c31 R - RAZ