H8SXSLASH1663M datasheet(671/1504 Pages) RENESAS

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Section 13 I/O Ports

Rev. 2.00 Sep. 24, 2008 Page 639 of 1468

REJ09B0412-0200

(5)

PF3/A19

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

EXPE bit, the 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 value)

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, the 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 value)

Note:

Valid in external extended mode (EXPE = 1)

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