Daewoo CP005P-010G1 User Manual

Page 18

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ST92195B - GENERAL INFORMATION

PIN DESCRIPTION (Cont’d)

P0[7:0], P2[5:0], P3[7:4], P4[7:0], P5[1:0]

I/O Port Lines

(Input/Output, TTL or CMOS com-

patible).

28 lines grouped into I/O ports, bit programmable
as general purpose I/O or as Alternate functions
(see I/O section).

Important

: Note that open-drain outputs are for

logic levels only and are not true open drain.

1.2.1 I/O Port Alternate Functions.

Each pin of the I/O ports of the ST92195 may as-
sume software programmable Alternate Functions
(see Table 1).

Table 1. ST92195 I/O Port Alternate Function Summary

Port bit

Alternate Function

Name

Function

P0.2

A/D Analog input 4

AIN4

I

P2.0

External interrupt 7

INT7

I

P2.1

External interrupt 5

INT5

I

A/D analog input 1

AIN1

I

P2.2

External interrupt 0

INT0

I

A/D analog input 2

AIN2

I

P2.3

External interrupt 6

INT6

I

Voltage synthesis output1

VSO1

O

P2.4

Non-maskable interrupt

NMI

I

P2.5

Voltage synthesis output2

VSO2

O

A/D analog input 3

AIN3

I

External interrupt 4

INT4

I

P3.4

P3.5

P3.7

Internal reset output

RESETO

O

Composite Sync output

CSO

O

P4.0

PWM output 0

PWM0

O

P4.1

PWM output 1

PWM1

O

P4.2

PWM output 2

PWM2

O

P4.3

PWM output 3

PWM3

O

Translucency digital output

TSLU

O

Half-tone output

HT

O

P4.4

PWM output 4

PWM4

O

P4.5

PWM output 5

PWM5

O

P4.6

PWM output 6

PWM6

O

P4.7

PWM output 7

PWM7

O

External A/D trigger

EXTRG

I

Standard timer output

STOUT

O

P5.0

External interrupt 2

INT2

I

SPI serial clock

SCK

O

P5.1

SPI serial data out

SDO

O

SPI serial data in

SDI

I

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