H8SXSLASH1663 datasheet(510/1158 Pages) RENESAS

510 / 1158 page

Section 9 I/O Ports

Rev.1.00 Jun. 07, 2006 Page 458 of 1102

REJ09B0294-0100

(2) PA6/

AS/AH/BS-B

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

EXPE bit, bus controller register, port function control register (PFCR), and the PA6DDR bit

settings.

Setting

Bus

Controller

I/O Port

Module Name

Pin Function

AH_OE

BSB_OE

AS_OE

PA6DDR

AH output*



BS-B output*



Bus controller

AS output*

(initial setting E)



PA6 output

I/O port

PA6 input

(initial setting S)

[Legend]

Initial setting E:

Initial setting in external extended mode

Initial setting S:

Initial setting in single-chip mode

Note:

Valid in external extended mode (EXPE = 1)

(3) PA5/

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

EXPE bit, and the PA5DDR bit settings.

Setting

MCU Operating Mode

I/O Port

Module Name

Pin Function

EXPE

PA5DDR

Bus controller

RD output*

(Initial setting E)



PA5 output

I/O port

PA5 input

(initial setting S)

[Legend]

Initial setting E:

Initial setting in external extended mode

Initial setting S:

Initial setting in single-chip mode

Note:

Valid in external extended mode (EXPE = 1)

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