S3C7235 datasheet(3/36 Pages) SAMSUNG

Part #	S3C7235

Description	The S3C7238/C7235 single-chip CMOS microcontroller has been designed for high performance using Samsungs newest 4-bit CPU core, SAM47 (Samsung Arrange

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Manufacturer	SAMSUNG [Samsung semiconductor]

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

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3 / 36 page

S3C7238/P7238/C7235/P7235

PRODUCT OVERVIEW

1-3

BLOCK DIAGRAM

Interrupt

Control

Block

Instruction

Register

Program

Counter

Program

Status Word

Stack

Pointer

Arithmetic and Logic Unit

Instruction Decoder

Clock

RESET

XIN

XTIN

Internal

Interrupts

INT0, INT1,INT2

P3.0/LCDCK

P3.1/LCDSY

P3.2

P3.3

I/O Port 3

512 x 4-Bit

Data

Memory

8/16-Kbyte

Program

Memory

LCD Drive/

Controller

BIAS

VLC0-VLC2

LCDCK/P3.0

LCDSY/P3.1

COM0-COM3

SEG0-SEG23

P8.0-P8.7/

SEG24-SEG31

P2.3/BUZ

XOUT

XTOUT

P6.0-P6.3/

KS0-KS3

I/O Port 6

P7.0-P7.3/

KS4-KS7

I/O Port 7

P4.0-P4.3

I/O Port 3

P5.0-P5.3

I/O Port 4

8-Bit Timer/

Counter 0

P1.3/TCL0

P2.0/TCLO0

P8.0-P8.7/

SEG24-SEG31

I/O Port 8

P1.0/INT0

P1.1/INT1

P1.2/INT2

P1.3/TCL0

Input Port 1

P2.0/TCLO0

P2.1

P2.2/CLO

P2.3/BUZ

I/O Port 2

Basic

Timer

4-Bit

Accumulator

FLAGS

P0.0/INT4

P0.1/SCK

P0.2/SO

P0.3/SI

I/O Port 0

Serial I/O

Port

P0.2

/SO

P0.3

/SI

P0.1

/SCK

Watch-Dog

Timer

Watch

Timer

Figure 1-1. S3C7238/C7235 Simplified Block Diagram

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