HD64F2149YV datasheet(249/1075 Pages) RENESAS

Nome de Peças	HD64F2149YV

Descrição Electrónicos	Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

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Fabricante Electrônico	RENESAS [Renesas Technology Corp]

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Section 8 I/O Ports

Rev. 3.00 Jan 18, 2006 page 221 of 1044

REJ09B0280-0300

8.5

Port 4

8.5.1

Overview

Port 4 is an 8-bit I/O port. Port 4 pins also function as 14-bit PWM output pins (PWX1, PWX0),

8-bit timer 0 and 1 (TMR0, TMR1) I/O pins (TMCI0, TMRI0, TMO0, TMCI1, TMRI1, TMO1),

timer connection I/O pins (CSYNCI, HSYNCI, HSYNCO), SCI2 I/O pins (TxD2, RxD2, SCK2),

IrDA interface I/O pins (IrTxD, IrRxD), host interface (XBS) output pins (HIRQ12, HIRQ1,

HIRQ11), and the IIC1 I/O pin (SDA1). Port 4 pin functions are the same in all operating modes.

Figure 8.12 shows the port 4 pin configuration.

P47 (I/O)/PWX1 (Output)

P46 (I/O)/PWX0 (Output)

P45 (I/O)/TMRI1 (Input)/HIRQ12 (Output)/CSYNCI (Input)

P44 (I/O)/TMO1 (Output)/HIRQ1 (Output)/HSYNCO (Output)

P43 (I/O)/TMCI1 (Input)/HIRQ11 (Output)/HCYNCI (Input)

P42 (I/O)/TMRI0 (Input)/SCK2 (I/O)/SDA1 (I/O)

P41 (I/O)/TMO0 (Output)/RxD2 (Input)/IrRxD (Input)

P40 (I/O)/TMCI0 (Input)/TxD2 (Output)/IrTxD (Output)

Port 4

Port 4 pins

Figure 8.12 Port 4 Pin Functions

8.5.2

Table 8.8 shows the port 4 register configuration.

Table 8.8

Port 4 Registers

Name

Abbreviation

R/W

Initial Value

Address*

Port 4 data direction register

P4DDR

H'00

H'FFB5

Port 4 data register

P4DR

R/W

H'00

H'FFB7

Note:

Lower 16 bits of the address.

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