Datasheet

PIC16(L)F1847

DS40001453E-page 20  2011-2013 Microchip Technology Inc.

3.3 Register Definitions: Status

U-0 U-0 U-0 R-1/q R-1/q R/W-0/u R/W-0/u R/W-0/u

— — —

PD ZDC

(1)

bit 7 bit 0

Legend:

R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’

u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets

‘1’ = Bit is set ‘0’ = Bit is cleared q = Value depends on condition

bit 7-5 Unimplemented: Read as ‘0’

bit 4 TO

: Time-out bit

1 = After power-up, CLRWDT instruction or SLEEP instruction

0 = A WDT time-out occurred

bit 3 PD

: Power-down bit

1 = After power-up or by the CLRWDT instruction

0 = By execution of the SLEEP instruction

bit 2 Z: Zero bit

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/Digit Borrow

bit

(1)

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

bit

(1)

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

Note 1: For Borrow

, the polarity is reversed. A subtraction is executed by adding the two’s complement of the

second operand. For rotate (RRF, RLF) instructions, this bit is loaded with either the high-order or low-order

bit of the source register.