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MCP2510-/ST 数据表(PDF) 18 Page - Microchip Technology |
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MCP2510-/ST 数据表(HTML) 18 Page - Microchip Technology |
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18 / 80 page ![]() MCP2510 DS21291F-page 18 © 2007 Microchip Technology Inc. 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 - 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 - 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 - 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 1 = Pin is used to request message transmission of TXB2 buffer (on falling edge) 0 = Digital input bit 1 B1RTSM: TX1RTS Pin Mode 1 = Pin is used to request message transmission of TXB1 buffer (on falling edge) 0 = Digital input bit 0 B0RTSM: TX0RTS Pin Mode 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<10:3>: 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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