| 전자부품 데이터시트 검색엔진 |
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PIC18F4685-I/SP 데이터시트(PDF) 278 Page - Microchip Technology |
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PIC18F4685-I/SP 데이터시트(HTML) 278 Page - Microchip Technology |
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278 / 484 page ![]() PIC18F2682/2685/4682/4685 DS39761B-page 276 Preliminary © 2007 Microchip Technology Inc. REGISTER 23-1: CANCON: CAN CONTROL REGISTER Mode 0 R/W-1 R/W-0 R/W-0 R/S-0 R/W-0 R/W-0 R/W-0 U-0 REQOP2 REQOP1 REQOP0 ABAT WIN2 WIN1 WIN0 — Mode 1 R/W-1 R/W-0 R/W-0 R/S-0 U0 U-0 U-0 U-0 REQOP2 REQOP1 REQOP0 ABAT — — — — Mode 2 R/W-1 R/W-0 R/W-0 R/S-0 R-0 R-0 R-0 R-0 REQOP2 REQOP1 REQOP0 ABAT FP3 FP2 FP1 FP0 bit 7 bit 0 Legend: S = Settable bit 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 7-5 REQOP2:REQOP0: Request CAN Operation Mode bits 1xx = Request Configuration mode 011 = Request Listen Only mode 010 = Request Loopback mode 001 = Request Disable mode 000 = Request Normal mode bit 4 ABAT: Abort All Pending Transmissions bit 1 = Abort all pending transmissions (in all transmit buffers) 0 = Transmissions proceeding as normal bit 3-1 Mode 0: WIN2:WIN0: Window Address bits These bits select which of the CAN buffers to switch into the access bank area. This allows access to the buffer registers from any data memory bank. After a frame has caused an interrupt, the ICODE3:ICODE0 bits can be copied to the WIN3:WIN0 bits to select the correct buffer. See Example 23-2 for a code example. 111 = Receive Buffer 0 110 = Receive Buffer 0 101 = Receive Buffer 1 100 = Transmit Buffer 0 011 = Transmit Buffer 1 010 = Transmit Buffer 2 001 = Receive Buffer 0 000 = Receive Buffer 0 bit 0 Unimplemented: Read as ‘0’ bit 4-0 Mode 1: Unimplemented: Read as ‘0’ Mode 2: FP3:FP0: FIFO Read Pointer bits These bits point to the message buffer to be read. 0111:0000 = Message buffer to be read 1111:1000 = Reserved |
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