W741E260 Datasheet, PDF (75/94 Pages) Winbond – 4-BIT FLASH MICROCONTROLLER

W741E260
Instruction Set Table 2, continued
MOV SCR, #I
System Clock Register control
Machine Code:
Machine Cycle:
Operation:
Description:
01010100
0 0 0 0 I3 I2 I1 I0
1
System clock control
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. This command is just for the W741C260 body.
SCR bits decription:
Bit 0
= 0, Fosc=Fm
= 1, Fosc=Fs
Bit 1
= 0, main oscillator is enabled
= 1, main oscillator is disabled
Bit 2
Bit 3
Reserved
= 0, divider 1 is 14-stage
= 1, divider 1 is 13-stage
MOV SEF, #I
Machine Code:
Machine Cycle:
Operation:
Description:
Set/Reset STOP mode waked-up Enable Flag for port RC
01010010
0 0 0 0 I3 I2 I1 I0
1
Set/reset STOP mode wake-up enable flag for port RC
The data specified by I cause a wake-up from the STOP mode. The falling-
edge signal on port RC can be specified independently.
I0~I7 Falling edge signal at port RC
I0 = 1
RC0
I1 = 1
RC1
I2 = 1
RC2
I3 = 1
RC3
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Publication Release Date: March 1998
Revision A2