Datasheet

PIC18F66K80 FAMILY
DS39977F-page 416  2010-2012 Microchip Technology Inc.
REGISTER 27-26: BnSIDL: TX/RX BUFFER ‘n’ STANDARD IDENTIFIER REGISTERS,
LOW BYTE IN RECEIVE MODE [0  n  5, TXnEN (BSEL0<n>) = 0]
(1)
R-x R-x R-x R-x R-x U-0 R-x R-x
SID2 SID1 SID0 SRR EXIDE
—EID17EID16
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 7-5
SID<2:0>: Standard Identifier bits (if EXID = 0)
Extended Identifier bits, EID<20:18> (if EXID =
1).
bit 4
SRR: Substitute Remote Transmission Request bit
This bit is always ‘
1’ when EXID = 1 or equal to the value of RXRTRRO (BnCON<5>) when EXID = 0.
bit 3
EXIDE: Extended Identifier Enable bit
1 = Received message is an extended identifier frame (SID<10:0> are EID<28:18>)
0 = Received message is a standard identifier frame
bit 2
Unimplemented: Read as ‘0’
bit 1-0
EID<17:16>: Extended Identifier bits
Note 1: These registers are available in Mode 1 and 2 only.
REGISTER 27-27: BnSIDL: TX/RX BUFFER ‘n’ STANDARD IDENTIFIER REGISTERS,
LOW BYTE IN TRANSMIT MODE [0  n  5, TXnEN (BSEL0<n>) = 1]
(1)
R/W-x R/W-x R/W-x U-0 R/W-x U-0 R/W-x R/W-x
SID2 SID1 SID0
— EXIDE —EID17EID16
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 7-5
SID<2:0>: Standard Identifier bits (if EXIDE (TXBnSIDL<3>) = 0)
Extended Identifier bits, EID<20:18> (if EXIDE =
1).
bit 4
Unimplemented: Read as ‘0’
bit 3
EXIDE: Extended Identifier Enable bit
1 = Message will transmit extended ID, SID<10:0> bits become EID<28:18>
0 = Received will transmit standard ID, EID<17:0> are ignored
bit 2
Unimplemented: Read as ‘0’
bit 1-0
EID<17:16>: Extended Identifier bits
Note 1: These registers are available in Mode 1 and 2 only.