PIC12C508A-04I/P Microchip Technology Inc., PIC12C508A-04I/P Datasheet - Page 50

• Manufacturer Part Number: PIC12C508A-04I/P
• Description: 8 PIN, 0.75 KB OTP, 25 RAM, 6 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC12C508A-04I/P

• Cpu Speed: 1 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 5
• Memory Type: OTP
• Number Of Bits: 8
• Package Type: 8-pin PDIP
• Programmable Memory: 768 Bytes
• Ram Size: 25 Bytes
• Speed: 4 MHz
• Timers: 1-8-bit
• Voltage, Range: 2.5-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC12C5XX
BSF
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
BTFSC
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
DS40139E-page 50
Before Instruction
After Instruction
Before Instruction
After Instruction
FLAG_REG = 0x0A
FLAG_REG = 0x8A
PC
if FLAG<1>
PC
if FLAG<1>
PC
Bit Set f
[ label ] BSF
0
0
1
Bit ’b’ in register ’f’ is set.
1
1
BSF
Bit Test f, Skip if Clear
[ label ] BTFSC f,b
0
0
skip if (f<b>) = 0
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.
1
1(2)
HERE
FALSE
TRUE
0110
0101
f
b
f
b
=
=
=
=
=
(f<b>)
31
31
7
7
FLAG_REG,
BTFSC
GOTO
•
•
•
address (HERE)
0,
address (TRUE);
1,
address(FALSE)
bbbf
bbbf
f,b
FLAG,1
PROCESS_CODE
ffff
ffff
7
BTFSS
Syntax:
Operands:
Operation:
Status Affected: None
Encoding:
Description:
Words:
Cycles:
Example:
Before Instruction
After Instruction
PC
If FLAG<1>
PC
if FLAG<1>
PC
Bit Test f, Skip if Set
[ label ] BTFSS f,b
0
0
skip if (f<b>) = 1
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.
1
1(2)
HERE
FALSE
TRUE
0111
f
b < 7
=
=
=
=
=
31
1999 Microchip Technology Inc.
BTFSS
GOTO
address (HERE)
0,
address (FALSE);
1,
address (TRUE)
bbbf
FLAG,1
PROCESS_CODE
ffff