SH7144 Datasheet, PDF (280/773 Pages) Renesas Technology Corp – Hitachi SuperH RISC engine

TCNT value
H'0180
H'0160
Counter cleared by TIOCB
input (falling edge)
H'0010
H'0005
H'0000
TIOCA
TGRA
H'0005
H'0160
Time
H'0010
TIOCB
TGRB
H'0180
Figure 11.10 Example of Input Capture Operation
11.4.2 Synchronous Operation
In synchronous operation, the values in a number of TCNT counters can be rewritten
simultaneously (synchronous presetting). Also, a number of TCNT counters can be cleared
simultaneously by making the appropriate setting in TCR (synchronous clearing).
Synchronous operation enables TGR to be incremented with respect to a single time base.
Channels 0 to 4 can all be designated for synchronous operation.
Rev. 2.0, 09/02, page 240 of 732