HD6432345 Datasheet, PDF (379/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

Contention between TCNT Write and Increment Operations: If incrementing occurs in the T2
state of a TCNT write cycle, the TCNT write takes precedence and TCNT is not incremented.
Figure 9.50 shows the timing in this case.
TCNT write cycle
T1
T2
ø
Address
TCNT address
Write signal
TCNT input
clock
TCNT
N
M
TCNT write data
Figure 9.50 Contention between TCNT Write and Increment Operations
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