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

PRELIMINARY DATA
Scalable parameters 247
Thus the recommended sequence for clearing the FIFO is:
... disable all sources of trace generation
while (DM.TRCTL.ff_status != empty) {
-- attempt to clear it
write DM.TRCTL.ff_clear = 1
-- loop for the implementation defined limit at which captured
trace may be generated
tries = 0;
while ((DM.ff_status != empty) &&
(tries < MAX_CLEAR_RETRIES)) {
tries++;
}
}
Note: For SH-5 evaluation device, MAX_CLEAR_RETRIES is 400.
4.1.6 Trace message header fields
SH-5 evaluation device provides the following watchpoint channels which can
generate trace messages:
Channel name
Function
Source_module
code
IA0 Instruction address 0 0x00
IA1 Instruction address 0 0x01
IA2 Instruction address 0 0x02
IA3 Instruction address 0 0x03
Event_type code
D R A FT
OA0 Operand address 0 0x04
OA1 Operand address 0 0x05
IV0 Instruction value 0 0x06
IV1 Instruction value 0 0x07
BR Branch trace 0 0x08
Table 89: SH-5 evaluation device trace message codes
05-SA-10003 v1.0
SuperH, Inc.
SH-5 System Architecture, Volume 3: Debug