S3C821A Просмотр технического описания (PDF) - Samsung

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Компоненты Описание

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S3C821A

S3C8-SERIES MICROCONTROLLES

Samsung 

PRODUCT OVERVIEW

S3C821A/P821A

PIN DESCRIPTIONS

Table 1-1. S3C821A Pin Descriptions

Pin

Names

P0.0–P0.7

P1.0–1.7

P2.0

P2.1

P2.2

P2.3

P2.4

P2.5

P2.6

P2.7

Pin

Type

Pin

Description

I/O 4-bit-programmable I/O port.

Pull-up resistors and open-drain outputs

are software assignable. Pull-up resistors

are automatically disabled for output

pins. Configurable as LCD segments/

external interface address and data lines

I/O 4-bit-programmable I/O port.

Pull-up resistors and open-drain outputs

are software assignable. Pull-up resistors

are automatically disabled for output

pins. Configurable as LCD segments/

external interface address and data lines

I/O 1-bit-programmable I/O port.

Pull-up resistors are software assignable,

and automatically disabled for output

pins. P2.0–P2.3 can alternately be used

as external interface lines. P2.4–P2.7 are

configurable as alternate functions or

external interrupts at falling edge with

noise filters.

Circuit

Type

H-32

H-32

D-4

Pin

Numbers (note)

72–79

(74-80, 1)

80, 1–7

(2-9)

8 (10)

9 (11)

18 (20)

19 (21)

20 (22)

21 (23)

22 (24)

23 (25)

P3.0–P3.3

P3.4–P3.6

P3.7

P4.0–P4.7

P5.0

P5.1

P5.2

P5.3

P5.4–P5.6

I/O 1-bit-programmable I/O port.

Pull-up resistors are software assignable,

and automatically disabled for output

pins. P3.0–P3.3 can alternately be used

as ADC. P3.7 is configurable as an

alternate function.

I/O 1-bit-programmable I/O port.

Pull-up resistors and open-drain outputs

are software assignable. Pull-up resistors

are automatically disabled for output

pins. P4.0–P4.7 are configurable as

external interrupts at a selectable edge

with noise filters.

I/O 1-bit-programmable I/O port.

Pull-up resistors are software assignable,

and automatically disabled for output

pins.

P5.0–P5.3 are configurable as alternate

functions. If SCK and SI are used as

input, these pins have noise filters.

NOTE: Parentheses indicate pin number for 80-QFP package.

F-16

D-4

D-4

E-4

D-4

25–28

(27–30)

30–32

(32–34)

33 (35)

34–41

(36–43)

42 (44)

43 (45)

44 (46)

45 (47)

46–48

(48–50)

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Pins

SEG16/A8

–

SEG23/A15

SEG24/AD0

–

SEG31/AD7

AS

DR

DW

DM

INT0/T0CK

INT1/T1CK

INT2/TA

INT3/TB

ADC0–ADC3

T0/T0PWM/

T0CAP

INT4–INT11

SCK

SI

SO

BUZ

1-6

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