HD64F2149 Datasheet, PDF(995/1035 Page) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

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HD64F2149 Datasheet, PDF (995/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

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Hardware

standby

*1

P42

*2

Reset

R

QD

P42DDR

C

WP4D

Reset

R

QD

P42DR

C

WP4

SCI2

Input enable

Clock output

Output enable

Clock input

IIC1

SDA1 output

Transmit enable

RP4

WP4D : Write to P4DDR

WP4 : Write to port 4

RP4 : Read port 4

Notes: 1. Output enable signal

2. Open drain control signal

Figure C.10 Port 4 Block Diagram (Pin P42)

SDA1 input

8-bit timer 0

Reset input

961

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