Intel 80C196NU, 8XC196NP, Microcontroller manual Contents

Models: Microcontroller 80C196NU 8XC196NP

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CONTENTS

4.5.1

 

Using Registers

4-12

4.5.2

 

Addressing 32-bit Operands

4-12

4.5.3

 

Addressing 64-bit Operands

4-12

4.5.4

 

Linking Subroutines

4-13

4.6 SOFTWARE PROTECTION FEATURES AND GUIDELINES

4-14

CHAPTER 5

 

MEMORY PARTITIONS

 

5.1

MEMORY MAP OVERVIEW

5-1

5.2

MEMORY PARTITIONS

5-3

5.2.1

 

External Memory

5-5

5.2.2 Program and Special-purpose Memory

5-5

5.2.2.1 Program Memory in Page FFH

5-5

5.2.2.2

Special-purpose Memory

5-6

5.2.2.3

Reserved Memory Locations

5-7

5.2.2.4 Interrupt and PTS Vectors

5-7

5.2.2.5

Chip Configuration Bytes

5-7

5.2.3

 

Peripheral Special-function Registers (SFRs)

5-7

5.2.4

 

Register File

5-9

5.2.4.1

General-purpose Register RAM

5-11

5.2.4.2

Stack Pointer (SP)

5-11

5.2.4.3

CPU Special-function Registers (SFRs)

5-12

5.3

WINDOWING

5-13

5.3.1

 

Selecting a Window

5-14

5.3.2 Addressing a Location Through a Window

5-16

5.3.2.1

32-byte Windowing Example

5-18

5.3.2.2

64-byte Windowing Example

5-18

5.3.2.3

128-byte Windowing Example

5-18

5.3.2.4 Unsupported Locations Windowing Example (8XC196NP Only)

5-19

5.3.2.5 Using the Linker Locator to Set Up a Window

5-19

5.3.3 Windowing and Addressing Modes

5-21

5.4 REMAPPING INTERNAL ROM (83C196NP ONLY)

5-22

5.5 FETCHING CODE AND DATA IN THE 1-MBYTE AND 64-KBYTE MODES

5-23

5.5.1

 

Fetching Instructions

5-23

5.5.2

 

Accessing Data

5-23

5.5.3 Code Fetches in the 1-Mbyte Mode

5-25

5.5.4 Code Fetches in the 64-Kbyte Mode

5-25

5.5.5 Data Fetches in the 1-Mbyte and 64-Kbyte Modes

5-26

5.6

MEMORY CONFIGURATION EXAMPLES

5-27

5.6.1 Example 1: Using the 64-Kbyte Mode

5-27

5.6.2 Example 2: A 64-Kbyte System with Additional Data Storage

5-29

5.6.3 Example 3: Using 1-Mbyte Mode

5-31

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Intel 80C196NU, 8XC196NP, Microcontroller manual Contents