參數(shù)資料
型號: PIC16CR620A
廠商: Microchip Technology Inc.
元件分類: 8位微控制器
英文描述: EPROM-Based 8-Bit CMOS Microcontroller
中文描述: 存儲器為基礎的8位CMOS微控制器
文件頁數(shù): 70/108頁
文件大?。?/td> 645K
代理商: PIC16CR620A
PIC16C62X
DS30235G-page 70
Preliminary
1998 Microchip Technology Inc.
RETURN
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
Return from Subroutine
[ label RETURN
None
TOS
PC
None
00
0000
0000
1000
Return from subroutine. The stack is
POPed and the top of the stack (TOS)
is loaded into the program counter.
This is a two cycle instruction.
1
2
Words:
Cycles:
Example
RETURN
After Interrupt
PC =
TOS
RLF
Syntax:
Operands:
Rotate Left f through Carry
[ label
RLF f,d
0
f
127
d
[0,1]
See description below
C
Operation:
Status Affected:
Encoding:
Description:
00
1101
dfff
ffff
The contents of register 'f' are rotated
one bit to the left through the Carry
Flag. If 'd' is 0 the result is placed in
the W register. If 'd' is 1 the result is
stored back in register 'f'.
Register f
C
Words:
Cycles:
Example
1
1
RLF
REG1,0
Before Instruction
REG1
C
=
=
1110 0110
0
After Instruction
REG1
W
C
=
=
=
1110 0110
1100 1100
1
RRF
Syntax:
Operands:
Rotate Right f through Carry
[ label RRF f,d
0
f
127
d
[0,1]
See description below
C
Operation:
Status Affected:
Encoding:
Description:
00
1100
dfff
ffff
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:
Cycles:
Example
1
1
RRF
REG1,0
Before Instruction
REG1
C
=
=
1110 0110
0
After Instruction
REG1
W
C
=
=
=
1110 0110
0111 0011
0
SLEEP
Syntax:
Operands:
Operation:
[ label
None
00h
WDT,
0
WDT prescaler,
1
TO,
0
PD
TO, PD
SLEEP
Status Affected:
Encoding:
Description:
00
0000
0110
0011
The power-down status bit, PD is
cleared. Time-out 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 9.8 for more details.
1
1
Words:
Cycles:
Example:
SLEEP
Register f
C
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