MSM64153AL datasheet(7/25 Pages) OKI

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¡ Semiconductor

MSM64153A/64153AL

Basic Functions (continued)

Ports

4-bit input port (port 2) :

Select between pull-down resistor input and high impedance

input for each bit with the port 2 control register (P2CON).

When configured for secondary functions, an external

interrupt and capture circuit trigger input are allocated.

If P2.0 to P2.3 are set to "H" level, the device enters system

reset mode.

2-bit input port (port 3) :

Select between pull-down resistor input and high impedance

input with the port 3 control register (P3CON).

When configured for a secondary function, an external

interrupt is allocated to P3.0 and an event counter is

allocated to P3.1.

I/O

4-bit input-output port (port 6) :

Select between input and output, between pull-down resistor

input and high impedance input, and between open-drain

output and CMOS output with the port 6 control register

(P6CON). When configured for a secondary function, an

external interrupt is allocated.

I/O

4-bit input-output port (port 7) :

Select between input and output, between pull-down

resistor input and high impedance input, and between

open-drain output and CMOS output with the port 7 control

function, an external interrupt is allocated.

Melody

Drivers

Output pin of melody driver 0

Inverted output pin of MD0 output

Output pin of melody driver 1

Inverted output pin of MD1 output

LCD common signal output pins

LCD

Drivers

Pad

Description

Type

Function

P2.0

P2.1

P2.2

P3.0

P3.1

P2.3

P6.0

P6.1

P6.2

P6.3

P7.0

P7.1

P7.2

P7.3

MD0

MD1

COM1

COM2

COM3

COM4

Symbol

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