H8SXSLASH1663 datasheet(522/1158 Pages) RENESAS

522 / 1158 page

Section 9 I/O Ports

Rev.1.00 Jun. 07, 2006 Page 470 of 1102

REJ09B0294-0100

(5) PF3/A19

The pin function is switched as shown below according to the combination of operating mode, the

EXPE bit, port function control register (PFCR), and the PF3DDR bit settings.

Setting

I/O Port

MCU

Operating Mode

Module Name

Pin Function

A19_OE

PF3DDR

On-chip ROM

disabled extended

mode

Bus controller

A19 output



Bus controller

A19 output*



PF3 output

Modes other than

on-chip ROM

disabled extended

mode

I/O port

PF3 input

(initial setting)

Note:

Valid in external extended mode (EXPE = 1)

(6) PF2/A18

The pin function is switched as shown below according to the combination of operating mode, the

EXPE bit, port function control register (PFCR), and the PF2DDR bit settings.

Setting

I/O Port

MCU

Operating Mode

Module Name

Pin Function

A18_OE

PF2DDR

On-chip ROM

disabled extended

mode

Bus controller

A18 output



Bus controller

A18 output*



PF2 output

Modes other than

on-chip ROM

disabled extended

mode

I/O port

PF2 input

(initial setting)

Note:

Valid in external extended mode (EXPE = 1)

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