H8SXSLASH1663R datasheet(658/1504 Pages) RENESAS

658 / 1504 page

Section 13 I/O Ports

Rev. 2.00 Sep. 24, 2008 Page 626 of 1468

REJ09B0412-0200

(2)

PA6/

AS/AH/BS-B

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

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

PA6DDR bit settings.

Setting

Bus

Controller

I/O Port

Module Name

Pin Function

AH_OE

BS-B_OE

AS_OE

PA6DDR

AH output*



BS-B output*



Bus controller

AS output*

(initial value E)



PA6 output

I/O port

PA6 input

(initial value S)

[Legend]

Initial value E:

Initial value in external extended mode

Initial value S:

Initial value 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 value E)



PA5 output

I/O port

PA5 input

(initial value S)

[Legend]

Initial value E:

Initial value in external extended mode

Initial value S:

Initial value in single-chip mode

Note:

Valid in external extended mode (EXPE = 1)

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