GMS81C2020 Datasheet, PDF (56/92 Pages) Hynix Semiconductor – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

GMS81C2020/GMS81C2120
Hyundai Micro Electro nics
n
This value is loaded to CDR0
T0
n-1
~~
~~
up-count
9
8
7
6
5
4
~~
3
2
1
0
Ext. INT0 Pin
Interrupt Request
( INT0F )
Interrupt Interval Period
TIME
Ext. INT0 Pin
Interrupt Request
( INT0F )
Capture
( Timer Stop )
Delay
Clear & Start
Figure 15-7 Input Capture Operation
Ext. INT0 Pin
Interrupt Request
( INT0F )
Interrupt Request
( T0F )
T0
56
Interrupt Interval Period = FF_H + 01_H + FF_H +01_H + 13_H = 213_H
FF_H
FF_H
13_H
00_H
00_H
Figure 15-8 Excess Timer Overflow in Capture Mode
preliminary
Nov. 1999 Ver 0.0