PIC16F010-ESLASHMS datasheet(21/116 Pages) MICROCHIP

21 / 116 page

Preliminary

DS41268C-page 19

PIC12F510/16F506

STATUS: STATUS REGISTER (PIC16F506)

R/W-0

R-1

R/W-x

RBWUF

CWUF

PA0

ZDC

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

RBWUF: PORTB Reset bit

= Reset due to wake-up from Sleep on pin change

= After power-up or other Reset

bit 6

CWUF: Comparator Reset bit

= Reset due to wake-up from Sleep on comparator change

= After power-up or other Reset

bit 5

PA0: Program Page Preselect bit

= Page 1 (200h-3FFh)

= Page 0 (000h-1FFh)

Each page is 512 bytes.

Using the PA0 bit as a general purpose read/write bit in devices which do not use it for program page preselect is

not recommended, since this may affect upward compatibility with future products.

bit 4

TO: Time-out bit

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

= A WDT time-out occurred

bit 3

PD: Power-down bit

= After power-up or by the CLRWDT instruction

= By execution of the SLEEP instruction

bit 2

Z: Zero bit

= The result of an arithmetic or logic operation is zero

= The result of an arithmetic or logic operation is not zero

bit 1

DC: Digit carry/borrow bit (for ADDWF and SUBWF instructions)

ADDWF:

= A carry from the 4th low-order bit of the result occurred

= A carry from the 4th low-order bit of the result did not occur

SUBWF:

= A borrow from the 4th low-order bit of the result did not occur

= 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:

= A carry occurred

= A borrow did not occur

Load bit with LSb or MSb, respectively

= A carry did not occur

= A borrow occurred

PIC16F010-E/MS 数据表(PDF) 21 Page - Microchip Technology

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