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

PRELIMINARY DATA
116 Debug module
DM.FIFO_ACK
0x100078
Field Bits Size Volatile? Synopsis Type
FF_READ_
ACK
0 1 ✓ DM FIFO transfer acknowledge RO
Operation
When read
When written
HARD reset 0
In “DM FIFO trace Hold” mode or “circular DM FIFO” mode, this is
one of the fields used to transfer data from the DM FIFO to the DM
FIFO port registers.
Value - Description
0: Transfer of trace message data between the DM FIFO and the
DM FIFO port registers is in progress. Software should not attempt
to read the DM FIFO port registers.
1: One trace message has been transferred from the DM FIFO to
the DM FIFO port registers. The DM FIFO port registers can now be
read. This field will remain set until another transfer request
command has been written to the DM.FIFO_REQ.FF_READ_REQ
field.
Ignored
— [63:1] 63 — Reserved RES
Operation
Reserved
When read Returns 0
When written
HARD reset 0
Ignored
Table 37: DM.FIFO_ACK definition
D R A FT
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug 05-SA-10003 v1.0