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PI3DPX1202A Fiches technique(PDF) 28 Page - Diodes Incorporated |
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PI3DPX1202A Fiches technique(HTML) 28 Page - Diodes Incorporated |
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28 / 51 page ![]() PI3DPX1202A A product Line of Diodes Incorporated 28 of 51 www.diodes.com September 2017 © Diodes Incorporated PI3DPX1202A Document number: DS40115 Rev.2-1 4.6 SMBus Programming SMBUS support Block Read, Block Write, Indexed Block Read and Indexed Block Write function. No Byte write function is supported. SMBUS has 20 internal registers. Only two registers are accessible by users. SMBUS address is set to 0xAA or 0xA8 depending on the SMBUS_ADDR pin setting. SMBus Address: Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 (I2C_ADDR pin 1-bit) Bit 0 1 0 1 0 1 0 1'b=0 : 0xA8 address 1'b=1 : 0xAA address R/W SMBus Write Byte Block Write s Wr A slave address A Command Code A Byte Count = N A Date Byte 0 A Date Byte 1 A Date Byte 2 A Date Byte 3 A Date Byte 4 A Date Byte 5 A Date Byte 6 A Date Byte 7 A Date Byte 8 P Index Block Write s s Wr A slave address A Command Code A Byte Count = N A Date Byte 0 A Date Byte 1 A Date Byte 2 A Date Byte 3 A Date Byte 4 A Date Byte 5 A Date Byte 6 A Date Byte 7 A Date Byte 8 P P Byte Write Wr A slave address A Command Code A Byte |
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