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INTEDG 数据表(PDF) 296 Page - Microchip Technology |
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INTEDG 数据表(HTML) 296 Page - Microchip Technology |
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296 / 478 page  PIC16(L)F1946/47 DS41414D-page 296 2010-2012 Microchip Technology Inc. REGISTER 24-5: SSPxMSK: SSPx MASK REGISTER R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 R/W-1/1 MSK<7:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7-1 MSK<7:1>: Mask bits 1 = The received address bit n is compared to SSPxADD<n> to detect I2C address match 0 = The received address bit n is not used to detect I2C address match bit 0 MSK<0>: Mask bit for I2C Slave mode, 10-bit Address I2C Slave mode, 10-bit address (SSPM<3:0> = 0111 or 1111): 1 = The received address bit 0 is compared to SSPxADD<0> to detect I2C address match 0 = The received address bit 0 is not used to detect I2C address match I2C Slave mode, 7-bit address, the bit is ignored REGISTER 24-6: SSPxADD: MSSPx ADDRESS AND BAUD RATE REGISTER (I2C MODE) R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 R/W-0/0 ADD<7:0> bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n/n = Value at POR and BOR/Value at all other Resets ‘1’ = Bit is set ‘0’ = Bit is cleared Master mode: bit 7-0 ADD<7:0>: Baud Rate Clock Divider bits SCLx pin clock period = ((ADD<7:0> + 1) *4)/FOSC 10-Bit Slave mode – Most Significant Address byte: bit 7-3 Not used: Unused for Most Significant Address byte. Bit state of this register is a “don’t care”. Bit pattern sent by master is fixed by I2C specification and must be equal to ‘11110’. However, those bits are compared by hardware and are not affected by the value in this register. bit 2-1 ADD<2:1>: Two Most Significant bits of 10-bit address bit 0 Not used: Unused in this mode. Bit state is a “don’t care”. 10-Bit Slave mode – Least Significant Address byte: bit 7-0 ADD<7:0>: Eight Least Significant bits of 10-bit address 7-Bit Slave mode: bit 7-1 ADD<7:1>: 7-bit address bit 0 Not used: Unused in this mode. Bit state is a “don’t care”. |
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