H8SSLASH2240 datasheet(270/818 Pages) RENESAS

270 / 818 page

Section 8 I/O Ports

Rev.3.00 Mar. 26, 2007 Page 228 of 772

REJ09B0355-0300

Selection Method and Pin Functions

4/TMRI1

This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and

CCLR0 in TCR1 are both set to 1.

The pin function is switched as shown below according to the combination of

bit P24DDR.

P24DDR

Pin function

4 input

4 output

TMRI1 input

3/TMCI0

This pin is used as the 8-bit timer external clock input pin when external clock

is selected with bits CKS2 to CKS0 in TCR0.

The pin function is switched as shown below according to the combination of

bit P23DDR.

P23DDR

Pin function

3 input

3 output

TMCI0 input

2/TMRI0

This pin is used as the 8-bit timer counter reset pin when bits CCLR1 and

CCLR0 in TCR0 are both set to 1.

The pin function is switched as shown below according to the combination of

bit P22DDR.

P22DDR

Pin function

2 input

2 output

TMRI0 input

The pin function is switched as shown below according to the combination of

bit P21DDR.

P21DDR

Pin function

1 input

1 output

The pin function is switched as shown below according to the combination of

bit P20DDR.

P20DDR

Pin function

0 input

0 output

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