Datasheet

2011-2013 Microchip Technology Inc. DS70657G-page 309
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
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BUFFER 21-3:
ECAN™
MESSAGE BUFFER WORD 2
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
EID5 EID4 EID3 EID2 EID1 EID0 RTR RB1
bit 15 bit 8
U-x U-x U-x R/W-x R/W-x R/W-x R/W-x R/W-x
RB0 DLC3 DLC2 DLC1 DLC0
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 15-10 EID<5:0>: Extended Identifier bits
bit 9 RTR: Remote Transmission Request bit
When IDE =
1:
1 = Message will request remote transmission
0 = Normal message
When IDE =
0:
The RTR bit is ignored.
bit 8 RB1: Reserved Bit 1
User must set this bit to ‘0’ per CAN protocol.
bit 7-5 Unimplemented: Read as ‘0
bit 4 RB0: Reserved Bit 0
User must set this bit to ‘0’ per CAN protocol.
bit 3-0 DLC<3:0>: Data Length Code bits
BUFFER 21-4: ECAN
MESSAGE BUFFER WORD 3
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 1
bit 15 bit 8
R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
Byte 0
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 15-8 Byte 1<15:8>: ECAN Message Byte 0 bits
bit 7-0 Byte 0<7:0>: ECAN Message Byte 1 bits