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Rev. 1.00, 05/04, page 203 of 544

10.3.9 Timer Connection Register I (TCONRI)

TCONRI controls the input capture function.

Bit Bit Name

Initial

Value R/W Description

7 to 5 — All 0 R/W Reserved

The initial value should not be changed.

4 ICST 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

3 to 0

— All 0 R/W Reserved

The initial values should not be modified.

10.3.10 Timer Connection Register S (TCONRS)

TCONRS selects whether to access TMR_X or TMR_Y registers.

Bit Bit Name

Initial

Value R/W Description

7 TMR_X/Y 0 R/W TMR_X/TMR_Y Access Select

For details, see table 10.4.

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

6 to 0  All 0 R/W Reserved

The initial values should not be modified.

1 2 ... 232 233 234 235 236 237 238 239 240 241 242 ... 581 582

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