HD6432621 Hitachi, HD6432621 Datasheet - Page 405

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

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 10-49 shows the timing in this case.
ø
Address
Write signal
Counter clear
signal
TCNT
Figure 10-49 Contention between TCNT Write and Clear Operations
N
TCNT write cycle
TCNT address
T1
T2
H'0000
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