W741C260 Datasheet, PDF (71/92 Pages) Winbond – 4-BIT MICROCONTROLLER

W741C260
Instruction Set Table 2, continued
MOV RB, R
Output R contents to RB port
Machine Code:
Machine Cycle:
Operation:
Description:
MOV RE, R
01011010
1 R6 R5 R4 R3 R2 R1 R0
1
[RB] ← (R)
The contents of the data memory location addressed by R6 to R0 are
output to the port RB.
Output R contents to port RE
Machine Code:
Machine Cycle:
Operation:
Description:
MOV SCR, #I
01011110
0 R6 R5 R4 R3 R2 R1 R0
1
[RE] ← (R)
The contents of the data memory location addressed by R6 to R0 are
output to port RE.
System Clock Register control
Machine Code:
Machine Cycle:
Operation:
01010100
0 0 0 0 I3 I2 I1 I0
1
System clock control
Description:
If the operation mode is the dual clock operation selected by the option
codes, the system clock and oscillator can be arranged by controlling the
system clock register.
SCR bits decription:
Bit 0
Bit 1
Bit 2
Bit 3
= 0, Fosc = Fm
= 1, Fosc = Fs
= 0, main oscillator is enabled
= 1, main oscillator is disabled
Reserved
= 0, divider 1 is 14-stage
= 1, divider 1 is 13-stage
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Publication Release Date: March 1998
Revision A3