HD64F36022 datasheet(126/384 Pages) RENESAS

Part #	HD64F36022

Description	Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series

PDF	384 Pages

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Manufacturer	RENESAS [Renesas Technology Corp]

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Section 9 I/O Ports

Rev. 4.00 Sep. 23, 2005 Page 100 of 354

REJ09B0025-0400

• P10 pin

PCR1

Bit Name

PCR10

Pin Function

Setting value

P10 input pin

P10 output pin

9.2

Port 2

Port 2 is a general I/O port also functioning as a SCI3 I/O pin. Each pin of the port 2 is shown in

figure 9.2. The register settings of PMR1 and SCI3 have priority for functions of the pins for both

uses.

P22/TXD

P21/RXD

P20/SCK3

Port 2

Figure 9.2 Port 2 Pin Configuration

Port 2 has the following registers.

• Port control register 2 (PCR2)

• Port data register 2 (PDR2)

9.2.1

Port Control Register 2 (PCR2)

PCR2 selects inputs/outputs in bit units for pins to be used as general I/O ports of port 2.

Bit

Bit Name

Initial

Value

R/W

Description

7 to 3



Reserved

PCR22

PCR21

PCR20

When each of the port 2 pins P22 to P20 functions as an

general I/O port, setting a PCR2 bit to 1 makes the

corresponding pin an output port, while clearing the bit to

0 makes the pin an input port.

HD64F36022 Datasheet(PDF) 126 Page - Renesas Technology Corp

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