SuperH (SH) 64-bit RISC Series SH-5 System Architecture, Volume ...

PRELIMINARY DATA
Debug module 117
1.8.14 DM.PC (shadow program counter register)
This register allows debug software to read the current value of the shadow PC and
the shadow ASID registers both located in the debug module.
DM.PC
0x100020
Field Bits Size Volatile? Synopsis Type
SHADOW_PC [31:0] 32 ✓ Program counter RO
SHADOW_
ASID
Operation
When read
When written
HARD reset
The debug module maintains a shadow program counter which is
kept in step with the program counter of the CPU core.
The LSB of this field indicates the current ISA Mode (1 ==
SHmedia, 0 == SHcompact).
Returns the current value of the shadow program counter. Reads
do not affect the value of this counter.
Ignored
Undefined
[39:32] 8 ✓ Application space ID RO
Operation
When read
When written
HARD reset
The debug module maintains a shadow ASID register which is
kept in step with the ASID field of the SR register in the CPU core.
Returns the current value of the shadow ASID register. Reads do
not affect the value of this register.
Ignored
Undefined
— [63:40] 24 — Reserved RES
Operation
D R A FT
Reserved
When read Returns 0
When written
HARD reset 0
Ignored
Table 38: DM.PC definition
05-SA-10003 v1.0
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug