參數(shù)資料
型號: PIC14000T-20/SO
廠商: Microchip Technology
文件頁數(shù): 4/153頁
文件大?。?/td> 0K
描述: IC MCU OTP 4KX14 A/D 28SOIC
標準包裝: 1,600
系列: PIC® 14
核心處理器: PIC
芯體尺寸: 8-位
速度: 20MHz
連通性: I²C
外圍設(shè)備: POR,溫度傳感器,WDT
輸入/輸出數(shù): 20
程序存儲器容量: 7KB(4K x 14)
程序存儲器類型: OTP
RAM 容量: 192 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 6 V
數(shù)據(jù)轉(zhuǎn)換器: 斜率 A/D
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 28-SOIC(0.295",7.50mm 寬)
包裝: 帶卷 (TR)
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 101
PIC14000
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
Description:
The W register is subtracted (2’s com-
plement 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=
3
C=
?
After Instruction
W
=
0xFF
C
=
0; result is nega-
tive
SUBWF
Subtract W from f
Syntax:
[
label ]
SUBWF f,d
Operands:
0
≤ f ≤ 127
d
∈ [0,1]
Operation:
(f) - (W)
→ (dest)
Status
Affected:
C, DC, Z
Encoding:
00
0010
dfff
ffff
Description:
Subtract (2’s complement method) W reg-
ister 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'.
Words:
1
Cycles:
1
Example 1:
SUBWF
REG1,1
Before Instruction
REG1
=
3
W=
2
C=
?
After Instruction
REG1
=
1
W=
2
C
=
1; result is positive
Example 2:
Before Instruction
REG1
=
2
W=
2
C=
?
After Instruction
REG1
=
0
W=
2
C
=
1; result is zero
Example 3:
Before Instruction
REG1
=
1
W=
2
C=
?
After Instruction
REG1
=
0xFF
W=
2
C
=
0; result is negative
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