HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 380

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

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 9.51 shows the timing in this case.
ø
Address
Write signal
Compare
match signal
TCNT
TGR
Figure 9.51 Contention between TGR Write and Compare Match
TGR write data
N
N
TGR write cycle
TGR address
T1
T2
N+1
M
Inhibited
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