Panasonic MN101CP49K, MN101C49K, MN101C49G, MN101CF49K, MN101C49H User Manual

MICROCOMPUTER MN101C

MN101C49G/49H/49K/F49K/P49K
LSI Application Notes Excerption

Pub.No.3144911-031E

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About This Manual

■ Configuration of This Manual

This LSI application note is consists of the following sections.

Chapter 1 Overview

This chapter describes the overview of this application note.

Chapter 2 Startup Program

This chapter describes a startup process necessary for executing a program.

Chapter 3 Register Setup of Each Function

This chapter describes the setting method and setting examples of registers having
MN101C49LSI function.

Chapter 4 Sample Program 1

This chapter describes sample programs for using each peripheral device referring to sample
circuits.

Chapter 5 Sample Program 2

This chapter provides an explanation of a startup process necessary before executing a sample
program in "5.1 Startup", and an explanation of sample programs utilizing basic functions of
this LSI in "5.2 Sample Program Using Timer Function" and "5.3 Sample Program Using
Serial Function". Each sample program is described following the sections below.

(1) Program operation and display
(2) Function used
(3) State transition diagram
(4) Software

Chapter 6 Appendix 1

This chapter provides a circuit diagram operated in "Chapter 3 Register Setup of Each
Function" and "Chapter 4 Sample Program 1" and supplementary explanations.

Chapter 7 Appendix 2

This chapter describes a sample program file organization and directory block diagram of
"Chapter 5 Sampler Program 2", and Makefile.

■ Related Manuals

Note that the following related documents are available.

"MN101C49G/49H/49K/F49K/P49K LSI User's Manual"
"MN101C Series C Compiler User's Manual: Language Description"

<Describes the syntax of the C Compiler.>

"MN101C Series C Compiler User's Manual: Library Reference"

<Describes the standard library of the C Compiler.>

"MN101C/MN101E Series C Compiler User's Manual: Usage Guide"

<Describes the installation, the commands, and options of the C Compiler.>

"MN101C/MN101E Series Cross-assembler User's Manual"

<Describes the assembler syntax and notation.>

"MN101C Series Instruction Manual"

<Describes the instruction set.>

Chapter 1 Overview

Chapter 2 Startup Program

Chapter 3

Chapter 4 Sample Program 1

Chapter 5 Sample Program 2

Register Setup of Each Function

1
2
3

4

5

Chapter 6 Appendix 1

Chapter 7 Appendix 2

6
7

Table of Contents

Chapter 1 Overview..................................................................................................................................................... 13

1.1 Overview........................................................................................................................................................... 14

1.2 Startup Program.................................................................................................................................................14

1.3 Register Setup of Each Function.......................................................................................................................14

1.4 Sample Program 1.............................................................................................................................................14

1.5 Sample Program 2.............................................................................................................................................14

1.6 Appendix 1 / Appendix 2...................................................................................................................................14

1.7 Development Environment of Sample Program................................................................................................15

1.7.1 Development environment of sample program 1....................................................................................... 15

1.7.2 Development environment of sample program 2....................................................................................... 16

Chapter 2 Startup Program........................................................................................................................................... 17

2.1 Overview........................................................................................................................................................... 18

2.2 Startup Processing............................................................................................................................................. 18

2.2.1. Memory area (Section) ......................................................................................................................... 18

2.2.2 Declaration for section............................................................................................................................... 19

2.2.3 Setting stack area....................................................................................................................................... 19

2.2.4 Clear area to be used to 0 ...........................................................................................................................19

2.2.5 Initializing static variables with initial values............................................................................................19

Chapter 3

Register Setup of Each Function

3.1 Description of C and Assembly Languages....................................................................................................... 22

3.2 Operation mode/Initializing Peripherals............................................................................................................ 24

3.2.1 Memory control register.............................................................................................................................24

3.2.2 Expansion address control register.............................................................................................................25

3.2.3 Oscillation frequency register....................................................................................................................26

3.2.4 CPU mode control register.........................................................................................................................27

3.3 Memory, Initializing Peripheral.........................................................................................................................30

3.3.1 Address bank register.................................................................................................................................30

3.3.2 ROM correction register............................................................................................................................ 31

3.4 Operation State Transition, Initializing Peripherals........................................................................................... 34

........................................................................................................................21

3.4.1 Oscillation stabilization wait control register.............................................................................................34

3.5 Interrupt, Initializing Peripherals.......................................................................................................................36

3.5.1 Interrupt control register............................................................................................... ............................. 36

3.5.2 Noise filter control register........................................................................................................................ 42

3.5.3 Both edges interrupt control register.......................................................................................................... 43

3.5.4 Key interrupt control register..................................................................................................................... 44