Datasheet

Section 15 Timer RC

REJ09B0465-0300 Rev. 3.00 Page 469 of 982

Sep 17, 2010

H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group

Figure 15.8 shows an example of buffer operation when GRA is set as an input-capture register

and GRC is set as the buffer register for GRA. TRCCNT functions as a free-running counter and

is captured at both rising and falling edges of the FTIOA signal. Due to the buffer operation, the

GRA value is transferred to GRC on an input-capture A and the TRCCNT value is stored in GRA.

TRCCNT

H'DA91

H'0245

H'0000

GRC

Time

H'0245

FTIOA

GRA

H'5480H'0245

H'FFFF

H'5480

H'DA91

Figure 15.8 Buffer Operation Example (Input Capture)