HD6435348R Hitachi Semiconductor, HD6435348R Datasheet - Page 243

• Manufacturer Part Number: HD6435348R
• Description: Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Contention between TCNT Write and Increment: If a timer counter increment pulse is
generated during the T
timer counter is not incremented.
Figure 11-10 shows this type of contention.
ø
Internal Address
bus
Internal write
signal
TCNT clock
pulse
TCNT
Figure 11-10 TCNT Write-Increment Contention
3
state of a write cycle to the timer counter, the write takes priority and the
Write cycle: CPU writes to TCNT
T
1
N
227
TCNT address
T
2
T
3
Write data
M