H8SLASH3021 datasheet(154/712 Pages) RENESAS

154 / 712 page

7. I/O Ports

Rev.2.00 Mar. 22, 2007 Page 130 of 684

REJ09B0352-0200

Table 7.1

Port Functions

Port

Description

Pins

Mode 1

Mode 3

Mode 5

Mode 6

Mode 7

Port 1

• 8-bit I/O

port

• Can drive

LEDs

7 to P10/

7 to A0

Address output

pins (A

7 to A0)

Address output (A

7 to

0) and generic input

DDR = 0:

generic input

DDR = 1:

address output

Generic

input/

output

Port 2

• 8-bit I/O

port

• Input pull-

• Can drive

LEDs

7 to P20/

15 to A8

Address output pins

15 to A8)

Address output (A

15 to

8) and generic input

DDR = 0:

generic input

DDR = 1:

address output

Generic

input/

output

Port 3

• 8-bit I/O

port

7 to P30/

7 to D0

Data input/output (D

7 to D0)

Generic

input/

output

Port 5

• 4-bit I/O

port

• Input pull-

• Can drive

LEDs

3 to P50/

19 to A16

Address output

19 to A16)

Address output (A

19 to

16) and 4-bit generic

input

DDR = 0:

generic input

DDR = 1:

address output

Generic

input/

output

Port 6

• 4-bit I/O

port

5/WR,

4/RD,

3/AS

Bus control signal output (

WR, RD, AS)

Generic

input/

output

0/WAIT

Bus control signal input/output (

WAIT) and 1-

bit generic input/output

Port 7

• 8-bit Input

port

7 to P70/

7 to AN0

Analog input (AN

7 to AN0) to A/D converter, and generic

input

Port 8

• 2-bit I/O

port

• P8

1 and

0have

Schmitt

inputs

1/ IRQ1

IRQ

1 input and 1-bit generic input

0/IRQ0

IRQ

0 input and 1-bit generic input/output

IRQ

1 and

IRQ

0 input

and

generic

input/

output

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