HD6413308 Hitachi Semiconductor, HD6413308 Datasheet - Page 181

• Manufacturer Part Number: HD6413308
• Description: Hitachi Single-Chip MicroComputer
• Manufacturer: Hitachi Semiconductor

(2) Contention between TCNT Write and Increment: If a timer counter increment pulse is
generated during the T
timer counter is not incremented.
Figure 7-14 shows this type of contention.
(3) Contention between TCOR Write and Compare-Match: If a compare-match occurs during
the T
match signal is inhibited.
Figure 7-15 shows this type of contention.
3
state of a write cycle to TCORA or TCORB, the write takes precedence and the compare-
3
Internal Address
bus
Internal write
signal
TCNT clock
pulse
TCNT
Figure 7-14. TCNT Write-Increment Contention
state of a write cycle to the timer counter, the write takes priority and the
Ø
Write cycle: CPU writes to TCNT
T
1
167
N
TCNT address
T
2
Write data
T
3
Figure 7-14
M