A product Line of Diodes Incorporated PI6CB33402SMBus Serial Data Interface PI6CB33402 is a slave only device that supports block read and block write protocol using a single 7-bit address and read/write bit as shown below. Read and write block transfers can be stopped after any complete byte transfer. Address AssignmentA6A5A4A3A2A1A0R/W 1 1 0 1 See SBMus Address Selection table 1/0 Note: SMBus address is latched on SADR pin How to Write1 bit7 bits1 bit 1 bit 8 bits1 bit 8 bits1 bit8 bits1 bit8 bits1 bit1 bit Beginning Beginning Data Byte Data Byte Start bit Add. W(0) Ack Byte loca- Ack Ack Data Byte Ack ... Ack Stop bit count = X tion = N (N+X-1) (N) How to Read1 bit7 bits1 bit 1 bit 8 bits1 bit 1 bit7 bits1 bit 1 bit 8 bits1 bit8 bits1 bit Beginning Beginning Repeat Data Byte Start bit Address W(0) Ack Byte loca- Ack Address R(1) Ack Ack Data Byte Ack Start bit count = X tion = N (N) 8 bits1 bit1 bit Data Byte ... NAck Stop bit (N+X-1) PI6CB33402 www.diodes.com January 2020 Document Number DS41293 Rev 5-2 10 Diodes Incorporated