GMS81C3004
Table of Contents
1. OVERVIEW............................................1
Description .........................................................1
Features .............................................................1
Development Tools ............................................1
13. INTERRUPTS ....................................46
Interrupt Sequence .......................................... 48
Multi Interrupt .................................................. 50
External Interrupt ............................................. 51
2. BLOCK DIAGRAM .................................2
3. PIN ASSIGNMENT ................................3
4. PACKAGE DIAGRAM ............................4
5. PIN FUNCTION......................................5
6. PORT STRUCTURES............................7
7. ELECTRICAL CHARACTERISTICS ....10
Absolute Maximum Ratings .............................10
Recommended Operating Conditions ..............10
DC Electrical Characteristics ...........................10
A/D Comparator Characteristics ......................12
AC Characteristics ...........................................12
Typical Characteristics .....................................14
14. KEY SCAN.........................................53
15. LCD DRIVER .....................................55
Configuration of LCD driver ............................. 55
Control of LCD Driver Circuit ........................... 56
Bias Resistor ................................................... 57
LCD Display Memory ...................................... 59
LCD Port Selection .......................................... 60
Control Method of LCD Driver ......................... 60
LCD Waveform ................................................ 62
16. WATCHDOG TIMER .........................64
17. BUZZER DRIVER ..............................66
18. POWER DOWN OPERATION...........68
SLEEP Mode ................................................... 68
STOP Mode .................................................... 69
8. MEMORY ORGANIZATION.................16
Registers ..........................................................16
Program Memory .............................................19
Data Memory ...................................................22
Addressing Mode .............................................25
19. OSCILLATOR CIRCUIT.....................73
20. RESET ...............................................74
External Reset Input ........................................ 74
Watchdog Timer Reset ................................... 74
9. I/O PORTS ...........................................29
Registers for Port .............................................29
I/O Ports Configuration ....................................30
21. POWER FAIL PROCESSOR.............75
A. CONTROL REGISTER LIST .................. i
B. PAD COORDINATION .......................... ii
Pad Layout ......................................................... ii
Bonding Pad Coordination ................................ iii
10. CLOCK GENERATOR .......................33
Operation Mode ...............................................35
Operation Mode Switching ...............................36
11. TIMER ................................................38
Basic Interval Timer .........................................38
Timer/Event Counter 1 .....................................39
Watch Timer .....................................................43
C. INSTRUCTION..................................... iv
Terminology List ................................................iv
Instruction Map ...................................................v
Instruction Set ...................................................vi
12. COMPARATOR .................................44
D. MASK ORDER SHEET ....................... xii
MAR. 1999 Ver 1.01