STATUS

STATUS

Status Register
Note:
  1. 1.For Borrow, the polarity is reversed. A subtraction is executed by adding the two’s complement of the second operand. For Rotate (RRCF, RLCF) instructions, this bit is loaded with either the high or low-order bit of the Source register.
  0x0003 8  
Parent topic: Register Definitions: Memory Organization

STATUS

Bit  7 6 5 4 3 2 1 0  
        TO PD Z DC C  
Access        R R R/W R/W R/W  
Reset        1 1 0 0 0  

Bit 4 – TO: Time-Out

Time-Out

ValueDescription
1 Set at power-up or by execution of CLRWDT or SLEEP instruction
0 A WDT time-out occurred

Bit 3 – PD: Power-Down

Power-Down

ValueDescription
1 Set at power-up or by execution of CLRWDT instruction
0 Cleared by execution of the SLEEP instruction

Bit 2 – Z: Zero

Zero

ValueDescription
1 The result of an arithmetic or logic operation is zero
0 The result of an arithmetic or logic operation is not zero

Bit 1 – DC: Digit Carry/Borrow(1)

Digit Carry/Borrow(1)

ADDWF, ADDLW, SUBLW, SUBWF instructions
ValueDescription
1 A carry-out from the 4th low-order bit of the result occurred
0 No carry-out from the 4th low-order bit of the result

Bit 0 – C: Carry/Borrow(1)

Carry/Borrow(1)

ADDWF, ADDLW, SUBLW, SUBWF instructions
ValueDescription
1 A carry-out from the Most Significant bit of the result occurred
0 No carry-out from the Most Significant bit of the result occurred