HMS81C2012A Datasheet, PDF (58/107 Pages) List of Unclassifed Manufacturers – CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver

HMS81C2012A/2020A
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 12-9 Input Capture Operation
Ext. INT0 Pin
Interrupt Request
( INT0F )
Interrupt Request
( T0F )
T0
54
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 12-10 Excess Timer Overflow in Capture Mode
SEP. 2004 Ver 2.00