70353C Datasheet, PDF (16/76 Pages) Microchip Technology – Section 21. Enhanced Controller Area Network

dsPIC33E/PIC24E Family Reference Manual
Register 21-9: CiFMSKSEL2: ECAN Filter 15-8 Mask Selection Register
R/W-0
R/W-0
F15MSK<1:0>
bit 15
R/W-0
R/W-0
F14MSK<1:0>
R/W-0
R/W-0
F13MSK<1:0>
R/W-0
R/W-0
F12MSK<1:0>
bit 8
R/W-0
R/W-0
F11MSK<1:0>
bit 7
R/W-0
R/W-0
F10MSK<1:0>
R/W-0
R/W-0
F9MSK<1:0>
R/W-0
R/W-0
F8MSK<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
F15MSK<1:0>: Mask Source for Filter 15 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
F14MSK<1:0>: Mask Source for Filter 14 bits (same values as bits 15-14)
F13MSK<1:0>: Mask Source for Filter 13 bits (same values as bits 15-14)
F12MSK<1:0>: Mask Source for Filter 12 bits (same values as bits 15-14)
F11MSK<1:0>: Mask Source for Filter 11 bits (same values as bits 15-14)
F10MSK<1:0>: Mask Source for Filter 10 bits (same values as bits 15-14)
F9MSK<1:0>: Mask Source for Filter 9 bits (same values as bits 15-14)
F8MSK<1:0>: Mask Source for Filter 8 bits (same values as bits 15-14)
Register 21-10: CiBUFPNT1: ECAN Filter 0-3 Buffer Pointer Register
R/W-0
bit 15
R/W-0
R/W-0
F3BP<3:0>
R/W-0
R/W-0
R/W-0
R/W-0
F2BP<3:0>
R/W-0
bit 8
R/W-0
bit 7
R/W-0
R/W-0
F1BP<3:0>
R/W-0
R/W-0
R/W-0
R/W-0
F0BP<3:0>
R/W-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 15-12
bit 11-8
bit 7-4
bit 3-0
F3BP<3:0>: RX Buffer Mask for Filter 3 bits
1111 = Filter hits received in RX FIFO buffer
1110 = Filter hits received in RX Buffer 14
•
•
•
0001 = Filter hits received in RX Buffer 1
0000 = Filter hits received in RX Buffer 0
F2BP<3:0>: RX Buffer mask for Filter 2 bits (same values as bits 15-12)
F1BP<3:0>: RX Buffer mask for Filter 1 bits (same values as bits 15-12)
F0BP<3:0>: RX Buffer mask for Filter 0 bits (same values as bits 15-12)
DS70353C-page 21-16
© 2008-2011 Microchip Technology Inc.