參數(shù)資料
型號(hào): C505C-2R
廠商: INFINEON TECHNOLOGIES AG
元件分類(lèi): 圓形連接器
英文描述: Circular Connector; No. of Contacts:5; Series:; Body Material:Aluminum; Connecting Termination:Solder; Connector Shell Size:18; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:18-5
中文描述: 8位單片機(jī)
文件頁(yè)數(shù): 32/88頁(yè)
文件大?。?/td> 1224K
代理商: C505C-2R
C505/C505C/C505A/C505CA
Data Sheet
28
12.00
Timer / Counter 0 and 1
Timer/Counter 0 and 1 can be used in four operating modes as listed in
Table 6
:
In the
timer
function (C/T =
0
) the register is incremented every machine cycle. Therefore the
count rate is
f
OSC
/6.
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
/12. 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.
Figure 10
Timer/Counter 0 and 1 Input Clock Logic
Table 6
Timer/Counter 0 and 1 Operating Modes
Mode
Description
TMOD
Input Clock
M1
M0
internal
f
OSC
/6x32
external (max)
f
OSC
/12x32
0
8-bit timer/counter with a
divide-by-32 prescaler
0
0
1
16-bit timer/counter
0
1
f
OSC
/6
f
OSC
/12
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
MCS03117
1
&
OSC
C/T = 0
C/T = 1
Control
=1
6
TR1
P3.5/T1
(TMOD)
P3.2/INT0
P3.3/INT1
f
Timer 0/1
Input Clock
OSC
/6
P3.4/T0
TR0
Gate
÷
_
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