M3882 datasheet(14/62 Pages) RENESAS

14 / 62 page

Rev.1.01

Nov 14, 2005

page 14 of 60

REJ03B0089-0101

3882 Group

Notes1: For details usage of double-function ports as function I/O ports, refer to the applicable sections.

2: Make sure that the input level of each pin should be either 0 V or VCC in STP mode.

When an input level is at an intermediate voltage level, the ICC current will become large because of the input buffer gate.

Name

Input/Output

I/O Format

Non-Port Function

Ref.No.

Table 7 I/O port function (2)

Related SFRs

P50/INT5

Port P5

Port P6

Port P7

Port P8

Input/output,

individual bits

CMOS compatible

input level

CMOS 3-state output

or N-channel

opendrain output

CMOS compatible

input level

CMOS 3-state output

CMOS compatible

input level or

TTL input level

Pure N-channel

open-drain output

CMOS compatible

input level

Pure N-channel

open-drain output

CMOS compatible

input level

CMOS 3-state output

External interrupt input

Interrupt edge selection

Port control register 2

Port control register 3

P51/INT20

P52/INT30

P53/INT40

P54/CNTR0

P55/CNTR1

Timer X, timer Y func-

tion I/O

Timer XY mode register

P56

P57

P60–

P67

P70

P71

P72

Port control register 2

P73/INT21

P74/INT31

P75/INT41

External interrupt input

Interrupt edge selection

Port control register 2

P76

P77

Data bus buffer control

Port control register 2

P80/LAD0

P81/LAD1

P82/LAD2

P83/LAD3

P84/

LFRAME

P85/

LRESET

P86/LCLK

P87/

SERIRQ

LPC interface function

I/O

Serialized IRQ function

I/O

(13)

(16)

(8)

(10)

(9)

(10)

(11)

(12)

(14)

(15)

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