Microchip Technology MA330031-2 Data Sheet
dsPIC33EPXXXGP50X, dsPIC33EPXXXMC20X/50X AND PIC24EPXXXGP/MC20X
DS70000657H-page 310
2011-2013 Microchip Technology Inc.
21.5
ECAN Message Buffers
ECAN Message Buffers are part of RAM memory. They
are not ECAN Special Function Registers. The user
application must directly write into the RAM area that is
configured for ECAN Message Buffers. The location
and size of the buffer area is defined by the user
application.
are not ECAN Special Function Registers. The user
application must directly write into the RAM area that is
configured for ECAN Message Buffers. The location
and size of the buffer area is defined by the user
application.
BUFFER 21-1:
ECAN™ MESSAGE BUFFER WORD 0
U-0
U-0
U-0
R/W-x
R/W-x
R/W-x
R/W-x
R/W-x
—
—
—
SID10
SID9
SID8
SID7
SID6
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
SID5
SID4
SID3
SID2
SID1
SID0
SRR
IDE
bit 7
bit 0
Legend:
R = Readable bit
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 15-13
Unimplemented:
Read as ‘0’
bit 12-2
SID<10:0>:
Standard Identifier bits
bit 1
SRR:
Substitute Remote Request bit
When IDE = 0:
1
1
= Message will request remote transmission
0
= Normal message
When IDE = 1:
The SRR bit must be set to ‘1’.
The SRR bit must be set to ‘1’.
bit 0
IDE:
Extended Identifier bit
1
= Message will transmit Extended Identifier
0
= Message will transmit Standard Identifier
BUFFER 21-2:
ECAN™ MESSAGE BUFFER WORD 1
U-0
U-0
U-0
U-0
R/W-x
R/W-x
R/W-x
R/W-x
—
—
—
—
EID17
EID16
EID15
EID14
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
EID13
EID12
EID11
EID10
EID9
EID8
EID7
EID6
bit 7
bit 0
Legend:
R = Readable bit
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 15-12
Unimplemented:
Read as ‘0’
bit 11-0
EID<17:6>:
Extended Identifier bits