HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 717

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: 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 16.47 shows the timing in this case.
P
Address
Write signal
Compare
match signal
TCNT
TGR
Figure 16.47 Contention between TGR Write and Compare Match
TGR write data
N
N
TGR write cycle
TGR address
T1
T2
N+1
M
Inhibited
705