MICROCOMPUTER MN101C
MN101C49G/49H/49K/F49K/P49K LSI Application Notes Excerption
Pub.No.3144911-031E
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life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of the products may directly jeopardize life or harm the human body.
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(5)When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions (operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any defect which may arise later in your equipment.
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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 Register Setup of Each Function
Chapter 4 Sample Program 1
Chapter 5 Sample Program 2
Chapter 6 Appendix 1
Chapter 7 Appendix 2
1
2
3
4
5
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........................................................................................................................ |
21 |
|
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 |
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 |
|
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