S3C8478 datasheet(6/24 Pages) SAMSUNG

Part #	S3C8478

Description	S3C8478/C8475 MICROCONTROLLER

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Manufacturer	SAMSUNG [Samsung semiconductor]

Direct Link	http://www.samsung.com/Products/Semiconductor

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PRODUCT OVERVIEW

S3C8478/C8475/P8475

1-6

Table 1-1. S3C8478/C8475 Pin Descriptions

Name

Type

Pin Description

Circuit

Number

Share

Pins

P0.0–P0.7

I/O

Nibble-programmable I/O port for Schmitt trigger

input or push-pull, open-drain output. Pull-up

resistors are assignable by software.

E

8-1

(2-1,

43-38)

–

P1.0–P1.5

I/O

Bit-programmable I/O port for Schmitt trigger input

or push-pull output. Pull-up resistors are assignable

by software. Port 1 pin can also by used as

alternative function (T0, T1CK, T1, BUZ, RxD, TxD)

D

42-37

(37-32)

T0, T1CK,

T1, BUZ,

RxD, TxD

P2.0–P2.7

I/O

Bit-programmable I/O port for Schmitt trigger input

or push-pull output. Pull-up resistors are assignable

by software. Port 2 pins can also be used as

external interrupt.

D

19-26

(13-20)

INT0-

INT7

P3.0–P3.7

I/O

Bit-programmable I/O port for Schmitt trigger input

or push-pull output. Pull-up resistors are assignable

by software. Port 3 pins can also be used as A/D

converter by software.

F

29-36

(24-31)

ADC0-

ADC7

P4.0–P4.3

I/O

Bit-programmable I/O port for Schmitt trigger input

or push-pull, open-drain output. Pull-up resistors are

assingable by software.

E

17-16,

10-9

(11-10,

4-3)

–

P4.4–P4.5

O

Push-pull output only

C

(44, 21)

–

X

IN, XOUT

–

Crystal or ceramic oscillator signal for system clock.

–

14, 13

(8, 7)

–

RESET

I

System reset signal input pin.

B

18 (12)

–

TEST

I

Test signal input pin (for factory use only; muse be

connected to V

SS)

–

15 (9)

–

AV

REF,

AV

SS

–

A/D converter reference voltage input and ground

–

27, 28

(22, 23)

–

V

DD, VSS

–

Voltage input pin and ground

–

11, 12

(5, 6)

–

T0

I/O

Timer 0 capture input or PWM output pin

D

42 (37)

P1.0

T1CK

I

Timer 1 external clock input pin

D

41 (36)

P1.1

T1

I/O

Timer 1 capture input or PWM output pin

D

40 (35)

P1.2

BUZ

O

200Hz-20kHz frequency output for buzzer sound

D

39 (34)

P1.3

RxD

I/O

UART receive and transmit input or output

D

38 (33)

P1.4

TxD

O

UART transmit output

D

37 (32)

P1.5

INT0-INT7

I

External interrupt input

E

19-26

(13-20)

P2.0-P2.7

ADC0-

ADC7

I

A/D converter input

F

29-36

(24-31)

P3.0-P3.7

NOTE: Pin numbers shown in parentheses "( )" are for the 44-pin QFP package.

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