HD6432670 Hitachi, HD6432670 Datasheet - Page 620

• Manufacturer Part Number: HD6432670
• Description: (HD64F267x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

11.10.6 Contention between TGR Write and Compare Match
If a compare match occurs in the T2 state of a TGR write cycle, the TGR write takes precedence
and the compare match signal is disabled. A compare match also does not occur when the same
value as before is written.
Figure 11.47 shows the timing in this case.
11.10.7 Contention between Buffer Register Write and Compare Match
If a compare match occurs in the T2 state of a TGR write cycle, the data transferred to TGR by the
buffer operation will be the data prior to the write.
Figure 11.48 shows the timing in this case.
Rev. 2.0, 04/02, page 574 of 906
ø
Address
Write signal
Compare
match signal
TCNT
TGR
Figure 11.47 Contention between TGR Write and Compare Match
TGR write data
N
N
TGR write cycle
TGR address
T1
T2
N + 1
M
Disabled