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MCP2515-E/ST Datasheet(PDF) 19 Page - Microchip Technology |
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MCP2515-E/ST Datasheet(HTML) 19 Page - Microchip Technology |
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19 / 84 page  © 2005 Microchip Technology Inc. Preliminary DS21801D-page 19 MCP2515 REGISTER 3-2: TXRTSCTRL – TXnRTS PIN CONTROL AND STATUS REGISTER (ADDRESS: 0Dh) REGISTER 3-3: TXBnSIDH – TRANSMIT BUFFER n STANDARD IDENTIFIER HIGH (ADDRESS: 31h, 41h, 51h) U-0 U-0 R-x R-x R-x R/W-0 R/W-0 R/W-0 — — B2RTS B1RTS B0RTS B2RTSM B1RTSM B0RTSM bit 7 bit 0 bit 7 Unimplemented: Read as ‘0’ bit 6 Unimplemented: Read as ‘0’ bit 5 B2RTS: TX2RTS Pin State bit - Reads state of TX2RTS pin when in Digital Input mode - Reads as ‘0’ when pin is in ‘Request-to-Send’ mode bit 4 B1RTS: TX1RTX Pin State bit - Reads state of TX1RTS pin when in Digital Input mode - Reads as ‘0’ when pin is in ‘Request-to-Send’ mode bit 3 B0RTS: TX0RTS Pin State bit - Reads state of TX0RTS pin when in Digital Input mode - Reads as ‘0’ when pin is in ‘Request-to-Send’ mode bit 2 B2RTSM: TX2RTS Pin mode bit 1 = Pin is used to request message transmission of TXB2 buffer (on falling edge) 0 = Digital input bit 1 B1RTSM: TX1RTS Pin mode bit 1 = Pin is used to request message transmission of TXB1 buffer (on falling edge) 0 = Digital input bit 0 B0RTSM: TX0RTS Pin mode bit 1 = Pin is used to request message transmission of TXB0 buffer (on falling edge) 0 = Digital input 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/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x SID10 SID9SID8SID7SID6SID5SID4SID3 bit 7 bit 0 bit 7-0 SID: Standard Identifier bits <10:3> 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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