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PIC18F4580-E/ML 데이터시트(PDF) 296 Page - Microchip Technology |
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PIC18F4580-E/ML 데이터시트(HTML) 296 Page - Microchip Technology |
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296 / 490 page ![]() PIC18F2480/2580/4480/4580 DS39637D-page 296 © 2009 Microchip Technology Inc. bit 2-0 Mode 0: FILHIT<2:0>: Filter Hit bits These bits indicate which acceptance filter enabled the last message reception into Receive Buffer 1. 111 = Reserved 110 = Reserved 101 = Acceptance Filter 5 (RXF5) 100 = Acceptance Filter 4 (RXF4) 011 = Acceptance Filter 3 (RXF3) 010 = Acceptance Filter 2 (RXF2) 001 = Acceptance Filter 1 (RXF1), only possible when RXB0DBEN bit is set 000 = Acceptance Filter 0 (RXF0), only possible when RXB0DBEN bit is set Mode 1, 2: FILHIT<2:0> Filter Hit bits <2:0> These bits, in combination with FILHIT<4:3>, indicate which acceptance filter enabled the message reception into this receive buffer. 01111 = Acceptance Filter 15 (RXF15) 01110 = Acceptance Filter 14 (RXF14) ... 00000 = Acceptance Filter 0 (RXF0) REGISTER 24-14: RXB1CON: RECEIVE BUFFER 1 CONTROL REGISTER (CONTINUED) Note 1: This bit is set by the CAN module upon receiving a message and must be cleared by software after the buffer is read. As long as RXFUL is set, no new message will be loaded and buffer will be considered full. REGISTER 24-15: RXBnSIDH: RECEIVE BUFFER n STANDARD IDENTIFIER REGISTERS, HIGH BYTE [0 ≤ n ≤ 1] R-x R-x R-x R-x R-x R-x R-x R-x SID10 SID9 SID8 SID7 SID6 SID5 SID4 SID3 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 7-0 SID<10:3>: Standard Identifier bits (if EXID (RXBnSIDL<3>) = 0) Extended Identifier bits, EID<28:21> (if EXID = 1). |
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