HD6432351 datasheet(374/1025 Pages) RENESAS

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Section 9 I/O Ports

Rev. 3.00 Sep 15, 2006 page 340 of 988

REJ09B0330-0300

9.3

Port 2

9.3.1

Overview

Port 2 is an 8-bit I/O port. Port 2 pins also function as PPG output pins (PO7 to PO0) and TPU I/O

pins (TIOCA3, TIOCB3, TIOCC3, TIOCD3, TIOCA4, TIOCB4, TIOCA5, and TIOCB5). Port 2

pin functions are the same in all operating modes. Port 2 uses Schmitt-triggered input.

Figure 9.2 shows the port 2 pin configuration.

P27 (I/O)/PO7 (output)/TIOCB5 (I/O)

P26 (I/O)/PO6 (output)/TIOCA5 (I/O)

P25 (I/O)/PO5 (output)/TIOCB4 (I/O)

P24 (I/O)/PO4 (output)/TIOCA4 (I/O)

P23 (I/O)/PO3 (output)/TIOCD3 (I/O)

P22 (I/O)/PO2 (output)/TIOCC3 (I/O)

P21 (I/O)/PO1 (output)/TIOCB3 (I/O)

P20 (I/O)/PO0 (output)/TIOCA3 (I/O)

Port 2

Port 2 pins

Figure 9.2 Port 2 Pin Functions

9.3.2

Table 9.4 shows the port 2 register configuration.

Table 9.4

Port 2 Registers

Name

Abbreviation

R/W

Initial Value

Address*

Port 2 data direction register

P2DDR

H'00

H'FEB1

Port 2 data register

P2DR

R/W

H'00

H'FF61

Port 2 register

PORT2

Undefined

H'FF51

Note:

* Lower 16 bits of the address.

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