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
文件頁數(shù)： 64/88頁
文件大小： 449K
代理商： W741C250
W741C250
- 64 -
Instruction Set Table 2, continued
MOV PM0, #I
Set/Reset Port Mode 0 register
Machine Code:
Machine Cycle:
Operation:
Description:
0
1
0
1
0
0
1
1
0
0
0
0
I2
I1
I0
I3
1
Set/Reset Port mode 0 register
I0 = 0: RA port is CMOS type; I0 = 1: RA port is NMOS type.
I1 = 0: RB port is CMOS type; I1 = 1: RB port is NMOS type.
I2 = 0: RC port pull-high resistor is disabled;
I2 = 1: RC port pull-high resistor is enabled.
I3 = 0: RD port pull-high resistor is disabled;
I3 = 1: RD port pull-high resistor is enabled.
MOV PM1, #I
RA port independent Input/Output control
Machine Code:
Machine Cycle:
Operation:
Description:
0
1
0
1
0
1
1
1
0
0
0
0
I3
I2
I1
I0
1
Input/output control of 4 RA port pins is independent.
I0 = 0: RA.0 is output pin; I0 = 1: RA.0 is input pin.
I1 = 0: RA.1 is output pin; I1 = 1: RA.1 is input pin.
I2 = 0: RA.2 is output pin; I2 = 1: RA.2 is input pin.
I3 = 0: RA.3 is output pin; I3 = 1: RA.3 is input pin.
Default condition RA port is input mode (PM1 = 1111B).
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