70353C Datasheet, PDF (15/76 Pages) Microchip Technology – Section 21. Enhanced Controller Area Network

Section 21. Enhanced Controller Area Network (ECAN™)
Register 21-7:
R/W-x
bit 15
CiRXMnEID: ECAN Acceptance Filter Mask Extended Identifier Register n (n = 0-2)
R/W-x
R/W-x
R/W-x
R/W-x
EID<15:8>
R/W-x
R/W-x
R/W-x
bit 8
R/W-x
bit 7
R/W-x
R/W-x
R/W-x
R/W-x
EID<7:0>
R/W-x
R/W-x
R/W-x
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-0
EID<15:0>: Extended Identifier bits
1 = Include bit, EIDx, in filter comparison
0 = Bit, EIDx, is a “don’t care” in filter comparison
Register 21-8: CiFMSKSEL1: ECAN Filter 7-0 Mask Selection Register
R/W-0
R/W-0
F7MSK<1:0>
bit 15
R/W-0
R/W-0
F6MSK<1:0>
R/W-0
R/W-0
F5MSK<1:0>
R/W-0
R/W-0
F4MSK<1:0>
bit 8
R/W-0
R/W-0
F3MSK<1:0>
bit 7
R/W-0
R/W-0
F2MSK<1:0>
R/W-0
R/W-0
F1MSK<1:0>
R/W-0
R/W-0
F0MSK<1:0>
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 15-14
bit 13-12
bit 11-10
bit 9-8
bit 7-6
bit 5-4
bit 3-2
bit 1-0
F7MSK<1:0>: Mask Source for Filter 7 bits
11 = Reserved; do not use
10 = Acceptance Mask 2 registers contain mask
01 = Acceptance Mask 1 registers contain mask
00 = Acceptance Mask 0 registers contain mask
F6MSK<1:0>: Mask Source for Filter 6 bits (same values as bits 15-14)
F5MSK<1:0>: Mask Source for Filter 5 bits (same values as bits 15-14)
F4MSK<1:0>: Mask Source for Filter 4 bits (same values as bits 15-14)
F3MSK<1:0>: Mask Source for Filter 3 bits (same values as bits 15-14)
F2MSK<1:0>: Mask Source for Filter 2 bits (same values as bits 15-14)
F1MSK<1:0>: Mask Source for Filter 1 bits (same values as bits 15-14)
F0MSK<1:0>: Mask Source for Filter 0 bits (same values as bits 15-14)
21
© 2008-2011 Microchip Technology Inc.
DS70353C-page 21-15