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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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18F8680 데이터시트(PDF) 155 Page - Microchip Technology |
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18F8680 데이터시트(HTML) 155 Page - Microchip Technology |
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155 / 496 page  2004 Microchip Technology Inc. DS30491C-page 153 PIC18F6585/8585/6680/8680 REGISTER 10-1: PSPCON REGISTER FIGURE 10-29: PARALLEL SLAVE PORT WRITE WAVEFORMS R-0 R-0 R/W-0 R/W-0 U-0 U-0 U-0 U-0 IBF OBF IBOV PSPMODE — — — — bit 7 bit 0 bit 7 IBF: Input Buffer Full Status bit 1 = A data byte has been received and is waiting to be read by the CPU 0 = No data byte has been received bit 6 OBF: Output Buffer Full Status bit 1 = The output buffer still holds a previously written data byte 0 = The output buffer has been read bit 5 IBOV: Input Buffer Overflow Detect bit 1 = A write occurred when a previously input data byte has not been read (must be cleared in software) 0 = No overflow occurred bit 4 PSPMODE: Parallel Slave Port Mode Select bit 1 = Parallel Slave Port mode 0 = General Purpose I/O mode bit 3-0 Unimplemented: Read as ‘0’ 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 Q1 Q2 Q3 Q4 CS Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 WR RD IBF OBF PSPIF PORTD<7:0> |
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