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S3C72Q5

4–BIT CMOS MICROCONTROLLER

Samsung 

Preface

The S3C72Q5/P72Q5 Microcontroller User's Manual is designed for application designers and programmers who are

using the S3C72Q5/P72Q5 microcontroller for application development. It is organized in two parts:

Part I

Programming Model

Part II

Hardware Descriptions

Part I contains software-related information to familiarize you with the microcontroller's architecture, programming

model, instruction set, and interrupt structure. It has five sections:

Section 1

Section 2

Section 3

Product Overview

Address Spaces

Addressing Modes

Section 4

Section 5

Memory Map

SAM48 Instruction Set

Section 1, "Product Overview," is a high-level introduction to the S3C72Q5/P72Q5, ranging from a general product

description to detailed information about pin characteristics and circuit types.

Section 2, "Address Spaces," introduces you to the S3C72Q5/P72Q5 programming model: the program memory

(ROM) and data memory (RAM) structures and how to address them. Section 2 also includes information about

stack operations, CPU registers, and the bit sequential carrier (BSC) register.

Section 3, "Addressing Modes," descriptions types of addressing supported by the SAM48 instruction set (direct,

indirect, and bit manipulation) and the addressing modes which are supported (1-bit, 4-bit, and 8-bit). Numberous

programming examples make the information practical and usable.

Section 4, "Memory Map," contains a detailed map of the addressable peripheral hardware registers in the memory-

mapped area of the RAM (bank 15). Section 4 also contains detailed descriptions in standard format of the most

commonly used hardware registers. These easy-to-read register descriptions can be used as a quick-reference

source when writing programs.

Section 5, " SAM48 Instruction Set," first introduces the basic features and conventions of the SAM48 instruction

set. Then, two summary tables orient you to the individual instructions: One table is a high-level summary of the

most important information about each instruction; the other table is designed to give expert programmers a

summary of binary code and instruction notation information. The final part of Section 5 contains detailed

descriptions of each instruction in a standard format. Each instruction description includes one or more practical

examples.

A basic familiarity with the information in Part I will make it easier for you to understand the hardware descriptions in

Part II. If you are familiar with the SAM48 product family and are reading this user's manual for the first time, we

recommend that you read Sections 1–3 carefully, and just scan the detailed information in Sections 4 and 5 very

briefly. Later, you can refer back to Sections 4 and 5 as necessary.

Part II "hardware Descriptions," has detailed information about specific hardware components of the

S3C72Q5/P72Q5 microcontroller. Also included in Part II are electrical, mechanical, OTP, and development tools

data. Part II has 12 sections:

Section 6

Section 7

Section 8

Section 9

Section 10

Section 11

Oscillator Circuit

Interrupts

Power-Down

RESET

I/O Ports

Timers and Timer/Counter 0

Section 12

Section 13

Section 14

Section 15

Section 16

Section 17

LCD Controller/Driver

External Memory Interface

Electrical Data

Mechanical Data

S3P72Q5 OTP

Development Tools

Two order forms are included at the back of this manual to facilitate customer order for S3C72Q5/P72Q5

microcontrollers: the Mask ROM Order Form, and the Mask Option Selection Form. You can photocopy these

forms, fill them out, and then forward them to your local Samsung Sales Representative.

S3C72Q5/P72Q5 MICROCONTROLLER

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