參數(shù)資料
型號(hào): W741C250
英文描述: 4-Bit Microcontroller
中文描述: 4位微控制器
文件頁(yè)數(shù): 21/88頁(yè)
文件大?。?/td> 449K
代理商: W741C250
W741C250
Publication Release Date: March 1998
- 21 -
Revision A4
Bit 0 = 1 Signal change on RC.0.
Bit 1 = 1 Signal change on RC.1.
Bit 2 = 1 Signal change on RC.2.
Bit 3 = 1 Signal change on RC.3.
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, 4096 Hz, 2048 Hz, 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 system clock). 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
R4
R3
R2
R1
R0
FUNCTION
0
0
0
0
0
0
Low level
0
0
0
0
0
1
128 Hz
0
0
0
0
1
0
64 Hz
0 0
0
0
0
1
0
0
8 Hz
0
0
1
0
0
0
4 Hz
0
1
0
0
0
0
2 Hz
1
0
0
0
0
0
1 Hz
0
0
0
0
0
0
High level
0
0
0
0
0
1
128 Hz
0
0
0
0
1
0
64 Hz
0 1
0
0
0
1
0
0
8 Hz
0
0
1
0
0
0
4 Hz
0
1
0
0
0
0
2 Hz
1
0
0
0
0
0
1 Hz
0
0
0
0
0
0
2048 Hz
0
0
0
0
0
1
2048 Hz * 128 Hz
0
0
0
0
1
0
2048 Hz * 64 Hz
1 0
0
0
0
1
0
0
2048 Hz * 8 Hz
0
0
1
0
0
0
2048 Hz * 4 Hz
0
1
0
0
0
0
2048 Hz * 2 Hz
1
0
0
0
0
0
2048 Hz * 1 Hz
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