HD64F36022 datasheet(122/384 Pages) RENESAS

Part #	HD64F36022

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

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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 96 of 354

REJ09B0025-0400

9.1.1

Port Mode Register 1 (PMR1)

PMR1 switches the functions of pins in port 1, port 2, and port 7.

Bit

Bit Name

Initial

Value

R/W

Description

IRQ3

R/W

P17/

IRQ3/TRGV Pin Function Switch

This bit selects whether pin P17/

IRQ3/TRGV is used as

P17 or as

IRQ3/TRGV.

0: General I/O port

IRQ3/TRGV input pin

6, 5



All 0



Reserved

These bits are always read as 0.

IRQ0

R/W

P14/

IRQ0 Pin Function Switch

This bit selects whether pin P14/

IRQ0 is used as P14 or

IRQ0.

0: General I/O port

IRQ0 input pin

TXD2

R/W

P72/TXD_2 Pin Function Switch

This bit selects whether pin P72/TXD_2 is used as P72 or

as TXD_2.

0: General I/O port

1: TXD_2 output pin



R/W

Reserved

This bit must always be cleared to 0 (setting to 1 is

disabled).

TXD

R/W

P22/TXD Pin Function Switch

This bit selects whether pin P22/TXD is used as P22 or

as TXD.

0: General I/O port

1: TXD output pin



Reserved

This bit is always read as 0.

HD64F36022 Datasheet(PDF) 122 Page - Renesas Technology Corp

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