Datasheet

Table Of Contents
Section 10 16-Bit Timer Pulse Unit (TPU)
REJ09B0140-0900 Rev. 9.00 Page 323 of 846
Sep 16, 2010
H8S/2215 Group
2. When TGR is an input capture register
Figure 10.20 shows an operation example in which TGRA has been designated as an input
capture register, and buffer operation has been designated for TGRA and TGRC. Counter
clearing by TGRA input capture has been set for TCNT, and both rising and falling edges have
been selected as the TIOCA pin input capture input edge. As buffer operation has been set,
when the TCNT value is stored in TGRA upon occurrence of input capture A, the value
previously stored in TGRA is simultaneously transferred to TGRC.
TCNT value
H'09FB
H'0000
TGRC
Time
H'0532
TIOCA
TGRA
H'0F07H'0532
H'0F07
H'0532
H'0F07
H'09FB
Figure 10.20 Example of Buffer Operation (2)