Renesas H8S/2633 Series Hardware Manual page 653

Contention between Buffer Register Write and Input Capture: If the input capture signal is
generated in the T2 state of a buffer write cycle, the buffer operation takes precedence and the
write to the buffer register is not performed.
Figure 11-55 shows the timing in this case.
ø
Address
Write signal
Input capture
signal
TCNT
TGR
Buffer
register
Figure 11-55 Contention between Buffer Register Write and Input Capture
Buffer register write cycle
T1 T2
Buffer register
address
N
M N
M
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