HD64F2357VF13 Datasheet, PDF(337/1049 Page) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

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HD64F2357VF13 Datasheet, PDF (337/1049 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

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9.9 Port B

9.9.1 Overview

Port B is an 8-bit I/O port. Port B has an address bus output function, and the pin functions change according to the

operating mode.

Port B has a on-chip MOS input pull-up function that can be controlled by software (on-chip ROM version only).

Figure 9-11 shows the port B pin configuration.

Port B

Port B pins

PB7/ A15

PB6/ A14

PB5/ A13

PB4/ A12

PB3/ A11

PB2/ A10

PB1/ A9

PB0/ A8

Pin functions in mode 7*

PB7 (I/O)

PB6 (I/O)

PB5 (I/O)

PB4 (I/O)

PB3 (I/O)

PB2 (I/O)

PB1 (I/O)

PB0 (I/O)

Pin functions in mode 6*

PB7 (input)/A15 (output)

PB6 (input)/A14 (output)

PB5 (input)/A13 (output)

PB4 (input)/A12 (output)

PB3 (input)/A11 (output)

PB2 (input)/A10 (output)

PB1 (input)/A9 (output)

PB0 (input)/A8 (output)

Pin functions in modes 4 and 5

A15 (output)

A14 (output)

A13 (output)

A12 (output)

A11 (output)

A10 (output)

A9 (output)

A8 (output)

Note: * Modes 6 and 7 are provided in the on-chip ROM version only.

Figure 9-11 Port B Pin Functions

Rev.6.00 Oct.28.2004 page 307 of 1016

REJ09B0138-0600H

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