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參數(shù)資料
型號: PIC12C509/JW
廠商: Microchip Technology
文件頁數(shù): 65/113頁
文件大?。?/td> 0K
描述: IC MCU EPROM 1KX12 8CDIP
標(biāo)準(zhǔn)包裝: 56
系列: PIC® 12C
核心處理器: PIC
芯體尺寸: 8-位
速度: 4MHz
外圍設(shè)備: POR,WDT
輸入/輸出數(shù): 5
程序存儲器容量: 1.5KB(1K x 12)
程序存儲器類型: EPROM,UV
RAM 容量: 41 x 8
電壓 - 電源 (Vcc/Vdd): 2.5 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 8-CDIP(0.300",7.62mm)窗口
包裝: 管件
配用: DVMCPA-ND - KIT DVR BOARD EVAL SYSTEM MXDEV1
DVA12XP080-ND - ADAPTER DEVICE FOR MPLAB-ICE
AC124001-ND - MODULE SKT PROMATEII 8DIP/SOIC
1999 Microchip Technology Inc.
DS40139E-page 55
PIC12C5XX
OPTION
Load OPTION Register
Syntax:
[
label ]
OPTION
Operands:
None
Operation:
(W)
→ OPTION
Status Affected:
None
Encoding:
0000
0010
Description:
The content of the W register is loaded
into the OPTION register.
Words:
1
Cycles:
1
Example
OPTION
Before Instruction
W=
0x07
After Instruction
OPTION =
0x07
RETLW
Return with Literal in W
Syntax:
[
label ]
RETLW k
Operands:
0
≤ k ≤ 255
Operation:
k
→ (W);
TOS
→ PC
Status Affected:
None
Encoding:
1000
kkkk
Description:
The W register is loaded with the eight
bit literal ’k’. The program counter is
loaded from the top of the stack (the
return address). This is a two cycle
instruction.
Words:
1
Cycles:
2
Example:
TABLE
CALL TABLE ;W contains
;table offset
;value.
;W now has table
;value.
ADDWF PC
;W = offset
RETLW k1
;Begin table
RETLW k2
;
RETLW kn
; End of table
Before Instruction
W=
0x07
After Instruction
W=
value of k8
RLF
Rotate Left f through Carry
Syntax:
[
label ] RLF
f,d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
See description below
Status Affected:
C
Encoding:
0011
01df
ffff
Description:
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’.
Words:
1
Cycles:
1
Example:
RLF
REG1,0
Before Instruction
REG1
=
1110 0110
C=
0
After Instruction
REG1
=
1110 0110
W=
1100 1100
C=
1
RRF
Rotate Right f through Carry
Syntax:
[
label ]
RRF f,d
Operands:
0
≤ f ≤ 31
d
∈ [0,1]
Operation:
See description below
Status Affected:
C
Encoding:
0011
00df
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
C
register ’f’
C
register ’f’
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