GR716-DS-UM, May 2019, Version 1.29
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GR716
50.3
Using the AHB trace buffer
The debug monitor GRMON3 has build-in support for using AHB trace buffer. For more information
see chapter for using the trace buffer in the GRMON3 User’s Manual [GRMON3].
hsize[5:0]
Transfer size
Active when HTRANS is SEQUENTIAL or NON-SEQUENTIAL,
slave has asserted HREADY and HSIZE is BYTE (hsize[0]),
HWORD (HSIZE[1]), WORD (hsize[2]), DWORD (hsize[3]),
4WORD hsize[4], or 8WORD (hsize[5]).
ws
Wait state
Active when HREADY input to AHB slaves is low and AMBA
response is OKAY.
retry
RETRY response
Active when master receives RETRY response
split
SPLIT response
Active when master receives SPLIT response
spdel
SPLIT delay
Active during the time a master waits to be granted access to the bus
after reception of a SPLIT response. The core will only keep track of
one master at a time. This means that when a SPLIT response is
detected, the core will save the master index. This event will then be
active until the same master is re-allowed into bus arbitration and is
granted access to the bus. This also means that the delay measured
will include the time for re-arbitration, delays from other ongoing
transfers and delays resulting from other masters being granted
access to the bus before the SPLIT:ed master is granted again after
receiving SPLIT complete.
If another master receives a SPLIT response while this event is
active, the SPLIT delay for the second master will not be measured.
locked
Locked access
Active while the HMASTLOCK signal is asserted on the AHB slave
inputs. (Currently not used by L3STATand L4STAT)
Table 664.
AHB events
Event
Description
Note