Contention Between Tcnt Write And Increment; Figure 11.11 Contention Between Tcnt Write And Increment - Hitachi H8S/2215 Series Hardware Manual

11.8.2

Contention between TCNT Write and Increment

If a timer counter clock pulse is generated during the T
takes priority and the counter is not incremented. Figure 11.11 shows this operation.
ø
Address
Internal write signal
TCNT input clock
TCNT

Figure 11.11 Contention between TCNT Write and Increment

Rev. 3.0, 10/02, page 342 of 686
state of a TCNT write cycle, the write
2
TCNT write cycle by CPU
T1 T2
TCNT address
N M
Counter write data