label ] BSF f,b Oper" />
參數(shù)資料
型號(hào)： PIC12C509A/JW
廠商： Microchip Technology
文件頁(yè)數(shù)： 60/113頁(yè)
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(chǔ)器容量： 1.5KB（1K x 12）
程序存儲(chǔ)器類(lèi)型： EPROM，UV
RAM 容量： 41 x 8
電壓 - 電源 (Vcc/Vdd)： 3 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
其它名稱(chēng)： PIC12C509A/JWR
PIC12C509A/JWR-ND
PIC12C5XX
DS40139E-page 50
1999 Microchip Technology Inc.
BSF
Bit Set f
Syntax:
[
label ] BSF
f,b
Operands:
0
≤ f ≤ 31
0
≤ b ≤ 7
Operation:
1
→ (f<b>)
Status Affected:
None
Encoding:
0101
bbbf
ffff
Description:
Bit ’b’ in register ’f’ is set.
Words:
1
Cycles:
1
Example:
BSF
FLAG_REG,
7
Before Instruction
FLAG_REG = 0x0A
After Instruction
FLAG_REG = 0x8A
BTFSC
Bit Test f, Skip if Clear
Syntax:
[
label ] BTFSC f,b
Operands:
0
≤ f ≤ 31
0
≤ b ≤ 7
Operation:
skip if (f<b>) = 0
Status Affected:
None
Encoding:
0110
bbbf
ffff
Description:
If bit ’b’ in register ’f’ is 0 then the next
instruction is skipped.
If bit ’b’ is 0 then the next instruction
fetched during the current instruction
execution is discarded, and an NOP is
executed instead, making this a 2 cycle
instruction.
Words:
1
Cycles:
1(2)
Example:
HERE
FALSE
TRUE
BTFSC
GOTO
FLAG,1
PROCESS_CODE
Before Instruction
PC
=
address (HERE)
After Instruction
if FLAG<1>=0,
PC
=
address (TRUE);
if FLAG<1>=1,
PC
=
address(FALSE)
BTFSS
Bit Test f, Skip if Set
Syntax:
[
label ] BTFSS f,b
Operands:
0
≤ f ≤ 31
0
≤ b < 7
Operation:
skip if (f<b>) = 1
Status Affected:
None
Encoding:
0111
bbbf
ffff
Description:
If bit ’b’ in register ’f’ is ’1’ then the next
instruction is skipped.
If bit ’b’ is ’1’, then the next instruction
fetched during the current instruction
execution, is discarded and an NOP is
executed instead, making this a 2 cycle
instruction.
Words:
1
Cycles:
1(2)
Example:
HERE
BTFSS
FLAG,1
FALSE
GOTO
PROCESS_CODE
TRUE
Before Instruction
PC
=
address (HERE)
After Instruction
If FLAG<1>
=
0,
PC
=
address (FALSE);
if FLAG<1>=1,
PC
=
address (TRUE)
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