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CHAPTER 2 DEPENDENCE FUNCTIONS
How to read trace data
frame no. address data a-status d-status Qst dfg event time stamp
(1) (2) (3) (4) (5) (6) (7) (8) (9)
(1):frame number (Decimal number)
(2):executed instruction address, and data access address (Hexadecimal number)
(3):data (Hexadecimal number)
(4):access information (a-status)
IWA : write access to internal memory
EWA : write access to external memory
IRA : read access to internal memory
ERA : read access to external memory
ICF : code fetch to internal memory
ECF : code fetch to external memory
--- : valid "d-status" information
(5):device status (d-status)
STANDBY : hardware standby
THOLD : tool hold
UHOLD : user hold
WAIT : waiting with ready pin
SLEEP : sleep
STOP : stop
EXECUTE : execute instruction
RESET : reset
------- : invalid d-status information
(6):instruction queue status
FLH : flush queue
-by : number of remainder code of queue is - byte (-: 1 to 8)
(7):information valid flag
& : address is valid
@ : data is valid
(8):event information
C : code event
D : data event
(9):time stamp display (ns unit)
displays difference of executed time between this frame and next frame (decimal)
Note:
Information about event hits is excluded from the displayed information. For code execution, in
particular, the effect of a prefetch is eliminated in consideration of the count of data in the instruction
queue. Therefore, the information about hits is displayed for frames after a prefetch frame at an
address for which an event is set.