HD6432621 Hitachi, HD6432621 Datasheet - Page 407

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

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
inhibited. A compare match does not occur even if the same value as before is written.
Figure 10-51 shows the timing in this case.
ø
Address
Write signal
Compare
match signal
TCNT
TGR
Figure 10-51 Contention between TGR Write and Compare Match
TGR write data
N
N
TGR write cycle
T1
TGR address
T2
N+1
M
Inhibited
363