參數(shù)資料
型號: PIC12F680
廠商: Microchip Technology Inc.
英文描述: 8-Pin, 8-Bit CMOS Enhanced FLASH Microcontroller with Serial I/O Interface(-2.0~5.5V,串行I/O接口,閃速微控制器)
中文描述: 8引腳,8位串行我的CMOS增強(qiáng)型閃存微控制器/ O接口(-2.0?5.5V的,串行的I / O接口,閃速微控制器)
文件頁數(shù): 120/170頁
文件大?。?/td> 4191K
代理商: PIC12F680
PIC16F62X
DS40300C-page 118
Preliminary
2003 Microchip Technology Inc.
RRF
Rotate Right f through Carry
Syntax:
[
label
] RRF f,d
Operands:
0
f
127
d
[0,1]
Operation:
See description below
Status Affected:
C
Encoding:
00
1100
dfff
ffff
Description:
The contents of register 'f' are
rotated one bit to the right
through the Carry Flag. If 'd' is 0
the result is placed in the W
register. If 'd' is 1 the result is
placed back in register 'f'.
Words:
1
Cycles:
1
Example
RRF
REG1, 0
Before Instruction
REG1
= 1110 0110
C
= 0
After Instruction
REG1
= 1110 0110
W
= 0111 0011
C
= 0
SLEEP
Syntax:
[
labe
l ]
SLEEP
Operands:
None
Operation:
00h
WDT,
0
WDT prescaler,
1
TO,
0
PD
Status Affected:
TO, PD
Encoding:
00
0000
0110
0011
Description:
The power-down STATUS bit,
PD is cleared. Timeout
STATUS bit, TO is set.
Watchdog Timer and its
prescaler are cleared.
The processor is put into
SLEEP mode with the
oscillator stopped. See
Section 14.9 for more details.
Words:
1
Cycles:
1
Example:
SLEEP
REGISTER F
C
SUBLW
Subtract W from Literal
Syntax:
[
label
]
SUBLW k
Operands:
0
k
255
Operation:
k - (W)
→ (
W)
Status
Affected:
C, DC, Z
Encoding:
11
110x
kkkk
kkkk
Description:
The W register is subtracted (2’s
complement method) from the eight
bit literal 'k'. The result is placed in
the W register.
Words:
1
Cycles:
1
Example 1:
SUBLW
0x02
Before Instruction
W = 1
C
=
After Instruction
W = 1
C = 1; result is positive
Example 2:
Before Instruction
W = 2
C =
After Instruction
W = 0
C = 1; result is zero
Example 3:
Before Instruction
W =
C =
3
After Instruction
W =
C =
0xFF
0; result is negative
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