| 전자부품 데이터시트 검색엔진 |
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MCP2515-E/ST 데이터시트(PDF) 31 Page - Microchip Technology |
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MCP2515-E/ST 데이터시트(HTML) 31 Page - Microchip Technology |
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31 / 84 page ![]() © 2005 Microchip Technology Inc. Preliminary DS21801D-page 31 MCP2515 REGISTER 4-7: RXBnEID0 – RECEIVE BUFFER n EXTENDED IDENTIFIER LOW (ADDRESS: 64h, 74h) REGISTER 4-8: RXBnDLC – RECEIVE BUFFER n DATA LENGHT CODE (ADDRESS: 65h, 75h) REGISTER 4-9: RXBnDM – RECEIVE BUFFER n DATA BYTE M (ADDRESS: 66h - 6Dh, 76h - 7Dh) R-x R-x R-x R-x R-x R-x R-x R-x EID7 EID6 EID5 EID4 EID3 EID2 EID1 EID0 bit 7 bit 0 bit 7-0 EID: Extended Identifier bits <7:0> These bits hold the least significant eight bits of the Extended 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 U-0 R-x R-x R-x R-x R-x R-x R-x — RTR RB1 RB0 DLC3 DLC2 DLC1 DLC0 bit 7 bit 0 bit 7 Unimplemented: Reads as ‘0’ bit 6 RTR: Extended Frame Remote Transmission Request bit (valid only when RXBnSIDL.IDE = ‘1’) 1 = Extended Frame Remote Transmit Request Received 0 = Extended Data Frame Received bit 5 RB1: Reserved Bit 1 bit 4 RB0: Reserved Bit 0 bit 3-0 DLC: Data Length Code bits <3:0> Indicates number of data bytes that were received 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 RBnDm7 RBnDm6 RBnDm5 RBnDm4 RBnDm3 RBnDm2 RBnDm1 RBnDm0 bit 7 bit 0 bit 7-0 RBnDm7:RBnDm0: Receive Buffer n Data Field Bytes m Eight bytes containing the data bytes 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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