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參數(shù)資料
| 型號： | C513AO |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-bit CMOS Microcontroller |
| 中文描述： | 8位CMOS微控制器 |
| 文件頁數(shù)： | 26/59頁 |
| 文件大?。?/td> | 1634K |
| 代理商： | C513AO |
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C513AO
Data Sheet
24
02.00
Timer/Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in
Table 4
:
In the “timer” function (C/T = ‘0’) the register is incremented every machine cycle. Since a machine
cycle consists of twelve oscillator periods, the count rate is 1/12th of the oscillator frequency.
In “counter” function, the register is incremented in response to a 1-to-0 transition (falling edge) at
its corresponding external input pin, T0 or T1 (alternate functions of P3.4 and P3.5, respectively).
Since it takes two machine cycles to detect a falling edge; therefore, the maximum count rate is 1/
24th of the oscillator frequency. External inputs INT0 and INT1 (P3.2, P3.3) can be programmed to
function as a gate to facilitate pulse width measurements.
Figure 13
illustrates the input clock logic.
Figure 13
Timer/Counter 0 and 1 Input Clock Logic
Table 4
Timer/Counter 0 and 1 Operating Modes
Mode
Description
TMOD
Input Clock
M1
M0
Internal
f
OSC
/(12
×
32)
External (max.)
f
OSC
/(24
×
32)
0
8-bit timer/counter with a
divide-by-32 prescaler
0
0
1
16-bit timer/counter
1
1
f
OSC
/12
f
OSC
/24
2
8-bit timer/counter with
8-bit autoreload
1
0
3
Timer/counter 0 used as one
8-bit timer/counter and one
8-bit timer
Timer 1 stops
1
1
÷
12
12
f
OSC
/12
MCS01768
OSC
f
C/T
TMOD
0
Control
Timer 0/1
Input Clock
TCON
TR 0/1
Gate
TMOD
&
=1
1
P3.4/T0
P3.5/T1
max
P3.2/INT0
P3.3/INT1
OSC
/24
f
1
÷
_
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| C513A-RN | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:8-Bit CMOS Microcontroller |
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