H8SX1663 datasheet(514/1158 Pages) RENESAS

tên linh kiện	H8SX1663

Giải thích chi tiết về linh kiện	Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series

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Section 9 I/O Ports

Rev.1.00 Jun. 07, 2006 Page 462 of 1102

REJ09B0294-0100

9.2.7

Port B

(1) PB7/SD

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

EXPE bit, port function control register (PFCR), and the PB7DDR bit settings.

Setting

MCU Operating Mode

I/O Port

Module Name

Pin Function

SDRAM Mode

PB7DDR

Clock pulse

generator

φ output*



I/O port

PB7 output

PB7 input

(initial setting)

Note:

Valid in SDRAM mode

(2) PB6/

CS6-D/(RD/WR-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 PB6DDR bit

settings.

Setting

I/O Port

Module Name

Pin Function

Byte control

SRAM

Selection

(RD/

WR)-B_OE

CS6D_OE

PB6DDR



RD/

WR-B output*



Bus controller

CS6-D output*



PB6 output

I/O port

PB6 input

(initial setting)

Note:

Valid in external extended mode (EXPE = 1)

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