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MCP2515-E/ST Datasheet(PDF) 29 Page - Microchip Technology |
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MCP2515-E/ST Datasheet(HTML) 29 Page - Microchip Technology |
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29 / 84 page  © 2005 Microchip Technology Inc. Preliminary DS21801D-page 29 MCP2515 REGISTER 4-3: BFPCTRL – RXnBF PIN CONTROL AND STATUS (ADDRESS: 0Ch) REGISTER 4-4: RXBnSIDH – RECEIVE BUFFER n STANDARD IDENTIFIER HIGH (ADDRESS: 61h, 71h) U-0 U-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 R/W-0 — — B1BFS B0BFS B1BFE B0BFE B1BFM B0BFM bit 7 bit 0 bit 7 Unimplemented: Read as ‘0’ bit 6 Unimplemented: Read as ‘0’ bit 5 B1BFS: RX1BF Pin State bit (Digital Output mode only) - Reads as ‘0’ when RX1BF is configured as interrupt pin bit 4 B0BFS: RX0BF Pin State bit (Digital Output mode only) - Reads as ‘0’ when RX0BF is configured as interrupt pin bit 3 B1BFE: RX1BF Pin Function Enable bit 1 = Pin function enabled, operation mode determined by B1BFM bit 0 = Pin function disabled, pin goes to high-impedance state bit 2 B0BFE: RX0BF Pin Function Enable bit 1 = Pin function enabled, operation mode determined by B0BFM bit 0 = Pin function disabled, pin goes to high-impedance state bit 1 B1BFM: RX1BF Pin Operation Mode bit 1 = Pin is used as interrupt when valid message loaded into RXB1 0 = Digital Output mode bit 0 B0BFM: RX0BF Pin Operation Mode bit 1 = Pin is used as interrupt when valid message loaded into RXB0 0 = Digital Output mode 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 R-x R-x R-x R-x R-x R-x R-x R-x SID10 SID9SID8SID7SID6SID5SID4SID3 bit 7 bit 0 bit 7-0 SID: Standard Identifier bits <10:3> These bits contain the eight most significant bits of the Standard Identifier for the received message 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 |
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