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M38B57M6-XXXFP

8-BIT SINGLE-CHIP MICROCOMPUTER

Mitsumi 

Table of contents

Table of contents

CHAPTER 1 HARDWARE

DESCRIPTION ................................................................................................................................ 1-2

FEATURES .................................................................................................................................... 1-2

APPLICATION ................................................................................................................................ 1-2

PIN CONFIGURATION .................................................................................................................. 1-2

FUNCTIONAL BLOCK .................................................................................................................. 1-3

PIN DESCRIPTION ........................................................................................................................ 1-4

PART NUMBERING ....................................................................................................................... 1-6

GROUP EXPANSION .................................................................................................................... 1-7

Memory Type ............................................................................................................................ 1-7

Memory Size ............................................................................................................................. 1-7

Package ..................................................................................................................................... 1-7

FUNCTIONAL DESCRIPTION ...................................................................................................... 1-8

Central Processing Unit (CPU) .............................................................................................. 1-8

Memory .................................................................................................................................... 1-12

I/O Ports .................................................................................................................................. 1-14

Interrupts ................................................................................................................................. 1-20

Timers ...................................................................................................................................... 1-23

Serial I/O ................................................................................................................................. 1-28

FLD Controller ........................................................................................................................ 1-40

A-D Converter ......................................................................................................................... 1-52

Pulse Width Modulation (PWM) ........................................................................................... 1-53

Interrupt Interval Determination Function ............................................................................ 1-56

Watchdog Timer ..................................................................................................................... 1-58

Buzzer Output Circucit .......................................................................................................... 1-59

Reset Circuit ........................................................................................................................... 1-60

Clock Generating Circuit ....................................................................................................... 1-62

NOTES ON PROGRAMMING ..................................................................................................... 1-65

NOTES ON USE .......................................................................................................................... 1-65

DATA REQUIRED FOR MASK ORDERS ................................................................................ 1-66

DATA REQUIRED FOR ROM WRITING ORDERS ................................................................. 1-66

ROM PROGRAMMING METHOD .............................................................................................. 1-66

MASK OPTION OF PULL-DOWN RESISTOR ......................................................................... 1-67

FUNCTIONAL DESCRIPTION SUPPLEMENT ......................................................................... 1-69

CHAPTER 2 APPLICATION

2.1 I/O port ..................................................................................................................................... 2-2

2.1.1 Memory assignment ....................................................................................................... 2-2

2.1.2 Relevant registers .......................................................................................................... 2-3

2.1.3 Terminate unused pins .................................................................................................. 2-6

2.1.4 Notes on use .................................................................................................................. 2-7

2.1.5 Termination of unused pins .......................................................................................... 2-8

2.2 Timer....................................................................................................................................... 2-10

2.2.1 Memory map ................................................................................................................. 2-10

2.2.2 Relevant registers ........................................................................................................ 2-11

38B5 Group User’s Manual

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