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PIC12C508A-04/P 参数 Datasheet PDF下载

PIC12C508A-04/P图片预览
型号: PIC12C508A-04/P
PDF下载: 下载PDF文件 查看货源
内容描述: 8引脚, 8位CMOS微控制器 [8-Pin, 8-Bit CMOS Microcontrollers]
分类和应用: 微控制器和处理器外围集成电路光电二极管PC可编程只读存储器时钟
文件页数/大小: 113 页 / 1604 K
品牌: MICROCHIP [ MICROCHIP ]
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PIC12C5XX  
BSF  
Bit Set f  
BTFSS  
Bit Test f, Skip if Set  
Syntax:  
Operands:  
[ label ] BSF f,b  
Syntax:  
[ label ] BTFSS f,b  
0 f 31  
0 b 7  
Operands:  
0 f 31  
0 b < 7  
Operation:  
1 (f<b>)  
Operation:  
skip if (f<b>) = 1  
Status Affected: None  
Status Affected: None  
0101  
bbbf  
ffff  
0111  
bbbf  
ffff  
Encoding:  
Description:  
Words:  
Encoding:  
Bit ’b’ in register ’f’ is set.  
If bit ’b’ in register ’f’ is ’1’ then the next  
instruction is skipped.  
Description:  
1
1
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.  
Cycles:  
BSF  
FLAG_REG,  
7
Example:  
Before Instruction  
FLAG_REG = 0x0A  
Words:  
1
After Instruction  
FLAG_REG = 0x8A  
Cycles:  
Example:  
1(2)  
HERE  
FALSE GOTO  
TRUE  
BTFSS FLAG,1  
PROCESS_CODE  
BTFSC  
Bit Test f, Skip if Clear  
Syntax:  
[ label ] BTFSC f,b  
Operands:  
0 f 31  
0 b 7  
Before Instruction  
PC  
=
address (HERE)  
After Instruction  
If FLAG<1>  
PC  
Operation:  
skip if (f<b>) = 0  
=
=
=
=
0,  
Status Affected: None  
address (FALSE);  
1,  
address (TRUE)  
bbbf  
ffff  
if FLAG<1>  
PC  
Encoding:  
0110  
If bit ’b’ in register ’f’ is 0 then the next  
instruction is skipped.  
Description:  
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:  
Example:  
1(2)  
HERE  
FALSE  
TRUE  
BTFSC  
GOTO  
FLAG,1  
PROCESS_CODE  
Before Instruction  
PC  
=
address (HERE)  
After Instruction  
if FLAG<1>  
PC  
=
=
=
=
0,  
address (TRUE);  
1,  
address(FALSE)  
if FLAG<1>  
PC  
DS40139E-page 50  
1999 Microchip Technology Inc.  
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