MC80F0424 Datasheet, PDF (71/135 Pages) List of Unclassifed Manufacturers – 8-BIT SINGLE-CHIP MICROCONTROLLERS

Preliminary
MC80F0424/0432/0448
T0
n
n-1
This value is loaded to CDR0
~~
~~
up-count
9
8
7
6
5
4
~~
3
2
1
0
Ext. INT0 Pin
Interrupt Request
( INT0IF )
Interrupt Interval Period
Ext. INT0 Pin
Interrupt Request
( INT0IF )
20nS
Capture
( Timer Stop )
5nS
Delay
Clear & Start
Figure 14-15 Input Capture Operation of Timer 0 Capture mode
Ext. INT0 Pin
Interrupt Request
( INT0IF )
Interrupt Request
( T0IF )
T0
Interrupt Interval Period=01_H+FF_H +01_H+FF_H +01_H+13_H=214_H
FF_H
FF_H
13_H
00_H
00_H
Figure 14-16 Excess Timer Overflow in Capture Mode
TIME
MAR. 2005 Ver 0.2
67