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Section 12 Compare Match Timer
R01UH0134EJ0400 Rev. 4.00 Page 659 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
12.5.2 Conflict between Word-Write and Count-Up Processes of CMCNT
Even when the count-up occurs in the T2 cycle while writing to CMCNT in words, the writing has
priority over the count-up. In this case, the count-up is not performed. Figure 12.6 shows the
timing to write to CMCNT in words.
CMCNT
T1 T2
CMCNT
MN
Peripheral clock
(Pφ)
Address signal
Internal write signal
CMCNT count-up
enable signal
CMCSR write cycle
Figure 12.6 Conflict between Word-Write and Count-Up Processes of CMCNT