參數(shù)資料
型號(hào): C508
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(yè)數(shù): 31/93頁(yè)
文件大小: 1204K
代理商: C508
C508
Data Sheet
27
2000-08
Timer/Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in
Table 5
.
In the timer function (C/T
= ‘0’) the register is incremented every machine cycle.
Therefore the count rate is
f
OSC
/3.
Figure 10
Timer/Counter 0 and 1 Input Clock Logic
In the “counter” function, the register is incremented in response to a 1-to-0 transition at
its corresponding external input pin (P3.4/T0, P3.5/T1). Since it takes two machine
cycles to detect a falling edge the max. count rate is
f
OSC
/6. External inputs INT0 and
INT1 (P3.2, P3.3) can be programmed to function as a gate to facilitate pulse width
measurements.
Figure 10
illustrates the input clock logic.
Table 5
Mode Description
Timer/Counter 0 and 1 Operating Modes
TMOD
M1
Input Clock
Internal
f
OSC
/3
×
2
<prescaler>
M0
0
0
8-bit timer/counter with a divide-by-32 prescaler 0
1
2
3
16-bit timer/counter
8-bit timer/counter with 8 bit auto-reload
Timer/Counter 0 used as one 8-bit timer/counter
and one 8-bit timer
Timer 1 stops
1
1
0
0
1
1
f
OSC
/3
MCT04100
OSC ÷3
=1
1
&
P3.4/T0
P3.5/T1
P3.2/INT0
P3.3/INT1
Control
1
0
GATE
TMOD
TR0/1
TCON
C/T
TMOD
Timer 0/1
Input Clock
Pin
Pin
相關(guān)PDF資料
PDF描述
C508 Previous Vectron Model Numbers
C509-L 8-Bit CMOS Microcontroller
C509-L 8-Bit CMOS Microcontroller
C513A-2RM 8-Bit CMOS Microcontroller
C513A-HN 8-Bit CMOS Microcontroller
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