Synchronous Operation; Figure 10.13 Example Of Input Capture Operation - Hitachi H8S/2215 Series Hardware Manual

TCNT value
H'0180
H'0160
H'0010
H'0005
H'0000
TIOCA
TGRA
TIOCB
TGRB
10.5.2

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 2 can
all be designated for synchronous operation.
Example of Synchronous Operation Setting Procedure: Figure 10.14 shows an example of the
synchronous operation setting procedure.
H'0005

Figure 10.13 Example of Input Capture Operation

Counter cleared by TIOCB
input (falling edge)
H'0160
H'0180
Rev. 3.0, 10/02, page 297 of 686
Time
H'0010