Renesas SH-4A User Manual page 71

Table 1.4 Measurement Items (cont)
Classification Type
System bus System bus
performance
(only available
for Ch3 and
Ch4)
Measurement Item
Number of requests
Number of
responses
Waited cycles for
request
Waited cycles for
response
Option Note
RQ The number of valid bus cycles
(cells) is counted by the system
bus clock.
RS The number of valid bus cycles
(cells) is counted by the system
bus clock.
WRQ The cycles for an issued request
(req), that no acceptance signal
(gnt) is issued to, are counted
by the system bus clock.
Even if the waits are issued
simultaneously for multiple
requests, they are counted as 1.
WRS The cycles for an issued
response (r_req), that no
acceptance signal (r_gnt) is
issued to, are counted by the
system bus clock.
Even if the waits are issued
simultaneously for multiple
requests, they are counted as 1.
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