PIC16F883-ESLASHSO. datasheet(165/338 Pages) MICROCHIP

165 / 338 page

 2006-2012 Microchip Technology Inc.

DS41291G-page 165

PIC16F882/883/884/886/887

RCSTA: RECEIVE STATUS AND CONTROL REGISTER(1)

R/W-0

R-0

R-x

SPEN

RX9

SREN

CREN

ADDEN

FERR

OERR

RX9D

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

SPEN: Serial Port Enable bit

1 = Serial port enabled (configures RX/DT and TX/CK pins as serial port pins)

0 = Serial port disabled (held in Reset)

bit 6

RX9: 9-bit Receive Enable bit

1 = Selects 9-bit reception

0 = Selects 8-bit reception

bit 5

SREN: Single Receive Enable bit

Asynchronous mode:

Don’t care

Synchronous mode – Master:

1 = Enables single receive

0 = Disables single receive

This bit is cleared after reception is complete.

Synchronous mode – Slave

Don’t care

bit 4

CREN: Continuous Receive Enable bit

Asynchronous mode:

1 = Enables receiver

0 = Disables receiver

Synchronous mode:

1 = Enables continuous receive until enable bit CREN is cleared (CREN overrides SREN)

0 = Disables continuous receive

bit 3

ADDEN: Address Detect Enable bit

Asynchronous mode 9-bit (RX9 = 1):

1 = Enables address detection, enable interrupt and load the receive buffer when RSR<8> is set

0 = Disables address detection, all bytes are received and ninth bit can be used as parity bit

Asynchronous mode 8-bit (RX9 = 0):

Don’t care

bit 2

FERR: Framing Error bit

1 = Framing error (can be updated by reading RCREG register and receive next valid byte)

0 = No framing error

bit 1

OERR: Overrun Error bit

1 = Overrun error (can be cleared by clearing bit CREN)

0 = No overrun error

bit 0

RX9D: Ninth bit of Received Data

This can be address/data bit or a parity bit and must be calculated by user firmware.

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