H8S2117R Datasheet, PDF (399/1024 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family / H8S/2100 Series

Section 13 8-Bit Timer (TMR)
13.3.8 Timer Connection Register I (TCONRI)
TCONRI controls the input capture function.
Bit Bit Name
7 to 5 —
4
ICST
3 to 0 —
Initial
Value R/W Description
All 0 R/W Reserved
The initial value should not be changed.
0
R/W Input Capture Start Bit
TMR_X has input capture registers (TICRR and
TICRF). TICRR and TICRF can measure the width of a
pulse by means of a single capture operation under the
control of the ICST bit. When a rising edge followed by
a falling edge is detected on TMRIX after the ICST bit
is set to 1, the contents of TCNT at those points are
captured into TICRR and TICRF, respectively, and the
ICST bit is cleared to 0.
[Clearing condition]
When a rising edge followed by a falling edge is
detected on TMRIX
[Setting condition]
When 1 is written in ICST after reading ICST = 0
All 0 R/W Reserved
The initial values should not be modified.
13.3.9 Timer Connection Register S (TCONRS)
TCONRS selects whether to access TMR_X or TMR_Y registers.
Bit Bit Name
7
TMRX/Y
6 to 0 
Initial
Value R/W Description
0
R/W TMR_X/TMR_Y Access Select
For details, see table 13.4.
0: The TMR_X registers are accessed at addresses
H'(FF)FFF0 to H'(FF)FFF5
1: The TMR_Y registers are accessed at addresses
H'(FF)FFF0 to H'(FF)FFF5
All 0 R/W Reserved
The initial values should not be modified.
Rev. 1.00 Apr. 28, 2008 Page 373 of 994
REJ09B0452-0100