HD6432351 datasheet(389/1025 Pages) RENESAS

389 / 1025 page

Section 9 I/O Ports

Rev. 3.00 Sep 15, 2006 page 355 of 988

REJ09B0330-0300

Selection Method and Pin Functions

P33/RxD1

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

bit RE in the SCI1 SCR, and bit P33DDR.

P33DDR

—

Pin function

P33 input pin

P33 output pin*

RxD1 input pin

Note:

* When P33ODR = 1, the pin becomes an NMOS open-drain output.

P32/RxD0

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

bit RE in the SCI0 SCR, and bit P32DDR.

P32DDR

—

Pin function

P32 input pin

P32 output pin*

RxD0 input pin

Note:

* When P32ODR = 1, the pin becomes an NMOS open-drain output.

P31/TxD1

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

bit TE in the SCI1 SCR, and bit P31DDR.

P31DDR

—

Pin function

P31 input pin

P31 output pin*

TxD1 output pin

Note:

* When P31ODR = 1, the pin becomes an NMOS open-drain output.

P30/TxD0

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

bit TE in the SCI0 SCR, and bit P30DDR.

P30DDR

—

Pin function

P30 input pin

P30 output pin*

TxD0 output pin

Note:

* When P30ODR = 1, the pin becomes an NMOS open-drain output.

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