HD6433682 ETC, HD6433682 Datasheet - Page 258

• Manufacturer Part Number: HD6433682
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
• Manufacturer: ETC

13.5.2
The status flag can be cleared by writing 0 after reading 1 from the CPU. Figure 13.51 shows the
timing in this case.
13.6
1. Contention between TCNT Write and Clear Operations: If a counter clear signal is generated
Rev. 3.00, 05/03, page 228 of 472
WTCNT
(internal write signal)
Address
WTSR
(internal write signal)
IMF, OVF
ITMZ
Counter clear signal
in the T
performed. Figure 13.52 shows the timing in this case.
TCNT
Usage Notes
Status Flag Clearing Timing
2
Figure 13.52 Contention between TCNT Write and Clear Operations
state of a TCNT write cycle, TCNT clearing has priority and the TCNT write is not
Figure 13.51 Status Flag Clearing Timing
N
TCNT write cycle
TCNT address
T
TSR address
1
T
2
H'0000
Clearing has priority.