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參數(shù)資料
| 型號： | 83C154S |
| 英文描述： | CMOS 8-bit Microcontroller(258.00 k) |
| 中文描述： | 的CMOS 8位微控制器（258.00十一） |
| 文件頁數(shù)： | 11/40頁 |
| 文件大?。?/td> | 258K |
| 代理商： | 83C154S |
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11/40
MSM80C154S/83C154S
Semiconductor
Timer/counter 0 mode setting
8-bit timer/counter with 5-bit prescalar.
16-bit timer/counter.
8-bit timer/counter with 8-bit auto reloading.
Timer/counter 0 separated into TLO (8-bit) timer/counter
and TH0 (8-bit) timer/counter. TF0 is set by TL0 carry, and
TF1 is set by TH0 carry.
NAME
ADDRESS
MSB
7
GATE
LSB
0
M0
6
5
4
3
2
1
BIT LOCATION
TMOD.0
FLAG
M0
FUNCTION
TMOD
89H
C/
T
M1
M0
GATE
C/
T
M1
M1
0
0
1
1
M0
0
1
0
1
TMOD.1
M1
Timer/counter 0 count clock designation control bit.
XTAL12 divided by 12 clocks is the input applied to timer/counter 0 when
C/
T
= "0".
The external clock applied to the T0 pin is the input applied to timer/counter 0
when C/
T
= "1".
When this bit is "0", the TR0 bit of TCON (timer control register) is used to
control the start and stop of timer/counter 0 counting.
If this bit is "1", timer/counter 0 starts counting when both the TR0 bit of TCON
and
INT0
pin input signal are "1", and stops counting when either is changed
to "0".
Timer/counter 1 mode setting
M1
M0
8-bit timer/counter with 5-bit prescalar.
0
0
16-bit timer/counter
0
1
8-bit timer/counter with 8-bit auto reloading.
1
0
Timer/counter 1 operation stopped.
1
1
Timer/counter 1 count clock designation control bit.
XTAL12 divided by 12 clocks is the input applied to timer/counter 1 when
C/
T
= "0".
The external clock applied to the T1 pin is the input applied to timer/counter 1
when C/
T
= "1".
When this bit is "0", the TR1 bit of TCON is used to control the start and stop of
timer/counter 1 counting.
If this bit is "1", timer/counter 1 starts counting when both the TR1 bit of TCON
and
INT1
pin input signal are "1", and stops counting when either is changed
to "0".
TMOD.2
C/
T
TMOD.3
GATE
TMOD.4
M0
TMOD.5
M1
TMOD.6
C/
T
TMOD.7
GATE
Special Function Registers
Timer mode register (TMOD)
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