参数资料
型号: SAF-C868P-1SGBA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 40 MHz, MICROCONTROLLER, PDSO28
封装: PLASTIC, SO-28
文件页数: 32/82页
文件大小: 1252K
代理商: SAF-C868P-1SGBA
C868
Data Sheet
38
V 1.0, 2003-05
Timer 0 and 1
Timer 0 and 1 can be used in four operating modes as listed in Table 8:
The register is incremented every machine cycle. Since the machine cycle consist of
twelve oscillator periods, the count rate is 1/12th of the system frequency. External
inputs INT0 and INT1 can be programmed to function as a gate to facilitate pulse width
measurements. Figure 15 illustrates the input clock logic.
Figure 15
Timer 0 and 1 Input Clock Logic
Table 8
Timer 0 and 1 Operating Modes
Mode
Description
TMOD
System Clock
M1
M0
0
8-bit timer with a divide-by-32 prescaler
0
fSYS/(12*32)
1
16-bit timer
0
1
fSYS/12
2
8-bit timer with 8-bit autoreload
1
0
3
Timer 0 used as one 8-bit timer and one 8-bit
timer
timer 1 stops
11
C/T = 0
Timer 0/1
TR0
Control
Gate
INT0
fSYS ÷ 12
=1
&
≥1
Pin
Input Clock
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