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參數資料
型號: W741C20X
廠商: WINBOND ELECTRONICS CORP
英文描述: 4-BIT MICROCONTROLLER
中文描述: 4位微控制器
文件頁數: 22/84頁
文件大小: 486K
代理商: W741C20X
Preliminary W741C20X
- 22 -
MFP Output Pin (MFP)
The MFP output pin can output the Timer 1 clock or the modulation frequency; the output of the pin is
determined by mode register 1 (MR1). The organization of MR1 is shown in Figure 6. When bit 2 of
MR1 is reset to "0," the MFP output can deliver a modulation output in any combination of one signal
from among DC, 4096Hz, 2048Hz, and one or more signals from among 128 Hz, 64 Hz, 8 Hz, 4 Hz, 2
Hz, or 1 Hz (when using a 32.768 KHz crystal). The MOV MFP, #I instruction is used to specify the
modulation output combination. The data specified by the 8-bit operand and the MFP output pin are
shown as below.
(F
OSC
= 32.768 KHz)
R7 R6
R5
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
R4
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
R3
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
R2
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
R1
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
R0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
FUNCTION
Low level
128 Hz
64 Hz
8 Hz
4 Hz
2 Hz
1 Hz
High level
128 Hz
64 Hz
8 Hz
4 Hz
2 Hz
1 Hz
2048 Hz
2048 Hz * 128 Hz
2048 Hz * 64 Hz
2048 Hz * 8 Hz
2048 Hz * 4 Hz
2048 Hz * 2 Hz
2048 Hz * 1 Hz
4096 Hz
4096 Hz * 128 Hz
4096 Hz * 64 Hz
4096 Hz * 8 Hz
4096 Hz * 4 Hz
4096 Hz * 2 Hz
4096 Hz * 1 Hz
0 0
0 1
1 0
1 1
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