H8SSLASH2214 datasheet(344/936 Pages) RENESAS

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Section 9 I/O Ports

Rev.4.00 Sep. 18, 2008 Page 284 of 872

REJ09B0189-0400

Port

Description

Pins

Modes 4 and 5

Mode 6

Mode 7

Port F • 8-bit I/O port

• Schmitt-

triggered

input (

IRQ3,

IRQ2)

PF7/

When DDR = 0: Input port

When DDR = 1 (after reset):

φ output

When DDR = 0

(after reset): Input

port

When DDR = 1:

output

PF6/

PF5/

PF4/

HWR

AS, RD, HWR output

I/O port

PF3/

LWR/IRQ3

16-bit bus mode:

LWR output

8-bit bus mode: I/O port also

functioning as interrupt input pin (

IRQ3)

I/O port also

functioning as

interrupt input pin

(

IRQ3)

PF2/

WAIT

When WAITE = 0 (after reset): I/O port

When WAITE = 1:

WAIT input

I/O port

PF1/

BACK

When BRLE = 0 (after reset): I/O port

When BRLE = 1:

BACK output

I/O port

PF0/

BREQ/IRQ2

When BRLE = 0 (after reset): I/O port

also functioning as interrupt input pin

(

IRQ2)

When BRLE = 1:

BREQ input also

functioning as interrupt input pin (

IRQ2)

I/O port also

functioning as

interrupt input pin

(

IRQ2)

Port G

PG4/

CS0

When DDR = 0*

1: Input port

When DDR = 1*

CS0 output

• 5-bit I/O port

• Schmitt-

triggered

input (

IRQ7,

IRQ6)

PG3/

CS1

PG2/

CS2

PG1/

CS3/IRQ7

When DDR = 0 (after reset): Input port

also functioning as interrupt input pin

(

IRQ7)

When DDR = 1: Interrupt input pin

(

IRQ7) also functions as CS1, CS2,

CS3 output

I/O port also

functioning as

interrupt input pins

(

IRQ6, IRQ7)

PG0/

IRQ6

Notes: 1. After a mode 6 reset

2. After a mode 4 or 5 reset

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