Datasheet

 2009-2013 Microchip Technology Inc. DS60001156H-page 265
PIC32MX5XX/6XX/7XX
REGISTER 23-9: CiRXMn: CAN ACCEPTANCE FILTER MASK ‘n’ REGISTER (n = 0, 1, 2 OR 3)
Bit
Range
Bit
31/23/15/7
Bit
30/22/14/6
Bit
29/21/13/5
Bit
28/20/12/4
Bit
27/19/11/3
Bit
26/18/10/2
Bit
25/17/9/1
Bit
24/16/8/0
31:24
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
SID<10:3>
23:16
R/W-0 R/W-0 R/W-0 U-0 R/W-0 U-0 R/W-0 R/W-0
SID<2:0> —MIDE— EID<17:16>
15:8
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EID<15:8>
7:0
R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0
EID<7:0>
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 31-21 SID<10:0>: Standard Identifier bits
1 = Include the SIDx bit in filter comparison
0 = The SIDx bit is a ‘don’t care’ in filter operation
bit 20 Unimplemented: Read as ‘0’
bit 19 MIDE: Identifier Receive Mode bit
1 = Match only message types (standard/extended address) that correspond to the EXID bit in filter
0 = Match either standard or extended address message if filters match (that is, if (Filter SID) = (Message
SID) or if (FILTER SID/EID) = (Message SID/EID))
bit 18 Unimplemented: Read as ‘0’
bit 17-0 EID<17:0>: Extended Identifier bits
1 = Include the EIDx bit in filter comparison
0 = The EIDx bit is a ‘don’t care’ in filter operation
Note: This register can only be modified when the CAN module is in Configuration mode (OPMOD<2:0>
(CiCON<23:21>) = 100).