HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 378

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Contention between TCNT Write and Clear Operations: If the counter clear signal is
generated in the T2 state of a TCNT write cycle, TCNT clearing takes precedence and the TCNT
write is not performed.
Figure 9.49 shows the timing in this case.
ø
Address
Write signal
Counter clear
signal
TCNT
Figure 9.49 Contention between TCNT Write and Clear Operations
N
TCNT write cycle
TCNT address
T1
T2
H'0000
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