8.6.1.3 Setting a Starting Sub-Address Procedure
The following procedure is followed for setting a starting sub-address for I2C reads:
- The master initiates a write operation by generating a start condition (S), followed by the SN65DSI85-Q1 7-bit address and a zero-value W/R bit to indicate a write cycle
- The SN65DSI85-Q1 device acknowledges the address cycle.
- The master presents the sub-address (I2C register within the SN65DSI85-Q1 device) to be written, consisting of one byte of data, MSB-first.
- The SN65DSI85-Q1 device acknowledges the sub-address cycle.
- The master terminates the write operation by generating a stop condition (P).