W741E260 Datasheet, PDF (71/94 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

W741E260
Instruction set table 2, continued
MOV PM1, #I
RA port independent Input/Output control
Machine Code:
01010111
0 0 0 0 I3 I2 I1 I0
Machine Cycle:
Operation:
1
RA port 4 pins input/output control is independent.
Description:
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 (PM = 1111B).
MOV PM2, #I
RB port independent Input/Output control
Machine Code:
01010111
1 0 0 0 I3 I2 I1 I0
Machine Cycle:
1
Operation:
RB port 4 pins input/output control is independent.
Description:
I0 = 0: RB.0 is output pin; I0 = 1: RB.0 is input pin.
I1 = 0: RB.1 is output pin; I1 = 1: RB.1 is input pin.
I2 = 0: RB.2 is output pin; I2 = 1: RB.2 is input pin.
I3 = 0: RB.3 is output pin; I3 = 1: RB.3 is input pin.
Default condition RB port is input mode (PM2 = 1111B).
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Publication Release Date: March 1998
Revision A2