W741E20X Datasheet, PDF (58/84 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

Preliminary W741E20X
Instruction Set Table 2, continued
MOV PM3, #I
Set/Reset Port Mode 3 register
Machine Code:
Machine Cycle:
Operation:
Description:
MOV PM4, #I
01010110
0 0 0 0 I3 I2 I1 I0
1
Set/Reset Port mode 3 register
I0 is reserved.
I1 = 0: The port RE is used as the output of the internal parallel port RT.
I1 = 1: The port RE works as the serial input/output port.
I2 is reserved.
I3 = 0: Serial Tx rate = FOSC/2
I3 = 1: Serial Tx rate = FOSC/256
RC port independent Input/Output control
Machine Code:
Machine Cycle:
Operation:
Description:
MOV PM5, #I
00110111
0 0 0 0 I3 I2 I1 I0
1
RC port 4 pins input/output control is independent.
I0 = 0: RC.0 is output pin; I0 = 1: RC.0 is input pin.
I1 = 0: RC.1 is output pin; I1 = 1: RC.1 is input pin.
I2 = 0: RC.2 is output pin; I2 = 1: RC.2 is input pin.
I3 = 0: RC.3 is output pin; I3 = 1: RC.3 is input pin.
Default condition RC port is input mode (PM4 = 1111B).
RD port independent Input/Output control
Machine Code:
Machine Cycle:
Operation:
Description:
00110111
1
1 0 0 0 I3 I2 I1 I0
RD port 4 pins input/output control is independent.
I0 = 0: RD.0 is output pin; I0 = 1: RD.0 is input pin.
I1 = 0: RD.1 is output pin; I1 = 1: RD.1 is input pin.
I2 = 0: RD.2 is output pin; I2 = 1: RD.2 is input pin.
I3 = 0: RD.3 is output pin; I3 = 1: RD.3 is input pin.
Default condition RD port is input mode (PM5 = 1111B).
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