PIC16F1847 データシートの表示（PDF） - Microchip Technology

部品番号

コンポーネント説明

メーカー

PIC16F1847

18/20/28-Pin Flash Microcontrollers with XLP Technology

Microchip Technology 

PIC16(L)F1847

3.3 Register Definitions: Status

REGISTER 3-1: STATUS: STATUS REGISTER

U-0

—

bit 7

U-0

U-0

R-1/q

—

—

TO

R-1/q

PD

R/W-0/u

Z

R/W-0/u

DC(1)

R/W-0/u

C(1)

bit 0

Legend:

R = Readable bit

u = Bit is unchanged

‘1’ = Bit is set

W = Writable bit

x = Bit is unknown

‘0’ = Bit is cleared

U = Unimplemented bit, read as ‘0’

-n/n = Value at POR and BOR/Value at all other Resets

q = Value depends on condition

bit 7-5

bit 4

bit 3

bit 2

bit 1

bit 0

Unimplemented: Read as ‘0’

TO: Time-out bit

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

0 = A WDT time-out occurred

PD: Power-down bit

1 = After power-up or by the CLRWDT instruction

0 = By execution of the SLEEP instruction

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

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

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.

DS40001453D-page 20

Preliminary

 2011-2013 Microchip Technology Inc.

Share Link: