參數(shù)資料
型號(hào): P12C508
廠商: Microchip Technology Inc.
英文描述: 8-Pin, 8-Bit CMOS Microcontroller
中文描述: 8引腳,8位CMOS微控制器
文件頁(yè)數(shù): 46/84頁(yè)
文件大?。?/td> 526K
代理商: P12C508
PIC12C5XX
DS40139A-page 46
Advanced Information
1996 Microchip Technology Inc.
SLEEP
Syntax:
Enter SLEEP Mode
[label
SLEEP
Operands:
Operation:
None
00h
WDT;
0
WDT prescaler;
1
TO;
0
PD
TO, PD, GPWUF
Status Affected:
Encoding:
Description:
0000
0000
0011
Time-out status bit (TO) is set. The
power down status bit (PD) is cleared.
GPWUF is unaffected.
The WDT and its prescaler are
cleared.
The processor is put into SLEEP mode
with the oscillator stopped. See sec-
tion on SLEEP for more details.
1
1
Words:
Cycles:
Example:
SLEEP
SUBWF
Syntax:
Subtract W from f
[label
0
f
31
d
[0,1]
(f) – (W)
→ (
dest)
C, DC, Z
SUBWF f,d
Operands:
Operation:
Status Affected:
Encoding:
Description:
0000
10df
ffff
Subtract (2’s complement method) the
W register from register 'f'. If 'd' is 0 the
result is stored in the W register. If 'd' is
1 the result is stored back in register 'f'.
1
1
Words:
Cycles:
Example 1:
Before Instruction
REG1
W
C
After Instruction
REG1
W
C
SUBWF REG1, 1
=
=
=
3
2
=
=
=
1
2
1 ; result is positive
Example 2:
Before Instruction
REG1
W
C
After Instruction
REG1
W
C
=
=
=
2
2
=
=
=
0
2
1 ; result is zero
Example 3:
Before Instruction
REG1
W
C
After Instruction
REG1
W
C
=
=
=
1
2
=
=
=
FF
2
0 ; result is negative
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