Datasheet PI6CB33801 (Diodes) - 10

A product Line of Diodes Incorporated
PI6CB33801 SMBus Serial Data Interface
PI6CB33801 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 Assignment A6 A5 A4 A3 A2 A1 A0 R/W
1 1 0 1 See SBMus Address Selection table 1/0 Note: SMBus address is latched on SADR pin
How to Write 1 bit 7 bits 1 bit 1 bit 8 bits 1 bit 8 bits 1 bit 8 bits 1 bit 8 bits 1 bit 1 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 Read 1 bit 7 bits 1 bit 1 bit 8 bits 1 bit 1 bit 7 bits 1 bit 1 bit 8 bits 1 bit 8 bits 1 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 bits 1 bit 1 bit
Data Byte ... NAck Stop bit (N+X-1) PI6CB33801 www.diodes.com January 2020 Document Number DS41288 Rev 5-2 10 Diodes Incorporated