Datasheet

Table Of Contents
PIC10F220/222
DS41270E-page 16 © 2007 Microchip Technology Inc.
REGISTER 4-1: STATUS REGISTER (ADDRESS: 03h)
R/W-0 R/W-0 R/W-0 R-1 R-1 R/W-x R/W-x R/W-x
GPWUF —TOPD ZDCC
bit 7 bit 0
Legend:
R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’
-n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared x = Bit is unknown
bit 7 GPWUF: GPIO Reset bit
1 = Reset due to wake-up from Sleep on pin change
0 = After power-up or other Reset
bit 6 Reserved: Do not use. Use of this bit may affect upward compatibility with future products.
bit 5 Reserved: Do not use. Use of this bit may affect upward compatibility with future products.
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/borrow
bit (for ADDWF and SUBWF instructions)
ADDWF:
1 = A carry to the 4th low-order bit of the result occurred
0 = A carry to the 4th low-order bit of the result did not occur
SUBWF
:
1 = A borrow from the 4th low-order bit of the result did not occur
0 = A borrow from the 4th low-order bit of the result occurred
bit 0 C: Carry/borrow bit (for ADDWF, SUBWF and RRF, RLF instructions)
ADDWF: SUBWF: RRF or RLF:
1 = A carry occurred 1 = A borrow did not occur Load bit with LSb or MSb, respectively
0 = A carry did not occur 0 = A borrow occurred