Specifications
Table Of Contents
- Technical Hardware
- 1 OVERVIEW
- 2 POWER SUPPLY AND INITIAL RESET
- 3 CPU, ROM, RAM
- 4 PERIPHERAL CIRCUITS AND OPERATION
- 4.1 Memory Map
- 4.2 Resetting Watchdog Timer
- 4.3 Oscillation Circuit
- 4.4 Input Ports (K00–K03, K10)
- 4.5 Output Ports (R00–R03)
- 4.6 I/O Ports (P00–P03, P10–P13, P20–P23)
- 4.7 LCD Driver (COM0–COM3, SEG0–SEG31)
- 4.8 Clock Timer
- 4.9 Stopwatch Timer
- 4.10 Programmable Timer
- 4.11 Serial Interface (SIN, SOUT, SCLK, SRDY)
- 4.12 A/D Converter
- 4.13 General-purpose Operation Amplifier (AMP)
- 4.14 SVD (Supply Voltage Detection) Circuit
- 4.15 Interrupt and HALT/SLEEP
- 5 SUMMARY OF NOTES
- 6 DIAGRAM OF BASIC EXTERNAL CONNECTIONS
- 7 CHARACTERISTICS
- 8 PACKAGE
- 9 PAD LAYOUT
- Technical Software
- 1 INTRODUCTION
- 2 BLOCK DIAGRAM
- 3 PROGRAM MEMORY (ROM)
- 4 DATA MEMORY
- 5 INITIAL RESET
- 6 PERIPHERAL CIRCUITS
- 6.1 Watchdog Timer
- 6.2 OSC3
- 6.3 Input Ports (K00–K03 and K10)
- 6.4 Output Ports (R00–R03)
- 6.5 I/O Ports (P00–P03, P10–P13 and P20–P23)
- 6.6 LCD Driver
- 6.7 Clock Timer
- 6.8 Stopwatch Timer
- 6.9 Programmable Timer
- 6.10 Serial Interface Circuit
- 6.11 Amplifier
- 6.12 SVD (Supply Voltage Detection) Circuit
- 6.13 A/D Converter
- 6.14 Sleep
- 6.15 Interrupt
- 7 SUMMARY OF NOTES
- APPENDIX
II-72 EPSON S1C62740 TECHNICAL SOFTWARE
CHAPTER 6: PERIPHERAL CIRCUITS (Interrupt)
;
ORG 10CH
JP SIOINT ;SIO (2nd PRIORITY)
;
ORG 10EH
JP PTINT ;PTM (1st PRIORITY)
;
;* APPLICATION MAIN ROUTINE
MAIN:
DI
;:
; (ENABLE TIMER. STOPWATCH, A/D CONVERTER, K0 INPUT,
; K10 INPUT, SIO, PROGRAMMABLE TIMER INTERRUPT)
;:
EI
MAIN1:
HALT
JP MAIN1
;
;* CLOCK TIMER INTERRUPT
TMINT:
LD X,ZIT ;LOAD TIMER INTERRUPT FLAG
;TO B REGISTER
LD B,MX
CHKT32:
FAN B,0001B ;CHECK TIMER 32 Hz INTERRUPT FLAG
JP Z,CHKT8 ;NO, THEN JUMP
CALL SERT32 ;TIMER 32 Hz SERVICE ROUTINE
CHKT8:
FAN B,0010B ;CHECK TIMER 8 Hz INTERRUPT FLAG
JP Z,CHKT2 ;NO, THEN JUMP
CALL SERT8 ;TIMER 8 Hz SERVICE ROUTINE
CHKT2:
FAN B,0100B ;CHECK TIMER 2 Hz INTERRUPT FLAG
JP Z,CHKT1 ;NO, THEN JUMP
CALL SERT2 ;TIMER 2 Hz SERVICE ROUTINE
CHKT1:
FAN B,1000B ;CHECK TIMER 1 Hz INTERRUPT FLAG
JP Z,INTEND ;NO, THEN JUMP
CALL SERT1 ;TIMER 1 Hz SERVICE ROUTINE
;
LD X,ZWDOG ;RESET WATCHDOG IN EVERY ONE
;1 Hz INTERRUPT
OR MX,1000B
INTEND: ;END OF INTERRUPT
EI
RET
;
;* STOPWATCH TIMER INTERRUPT
SWINT:
LD X,ZISW ;LOAD STOPWATCH INTERRUPT FLAG
;TO B REGISTER
LD B,MX