Datasheet VCNL3036X01 (Vishay) - 6

VCNL3036X01
www.vishay.com Vishay Semiconductors
Digital Interface
VCNL3036X01 applies single slave address 0x41 (HEX) of 7-bit addressing following I2C protocol. All operations can be controlled by the command register. The simple command structure helps users easily program the operation setting and latch the light data from VCNL3036X01. As Fig. 10 shows, VCNL3036X01’s I2C command format is simple for read and write operations between VCNL3036X01 and the host. The white sections indicate host activity and the gray sections indicate VCNL3036X01’s acknowledgement of the host access activity. Write word and read word protocol is suitable for accessing registers particularly for 12-bit / 16-bit PS data. Interrupt can be cleared by reading data out from register: INT_Flag. All command codes should follow read word and write word protocols. Send Byte → Write Command to VCNL3036X01 1 7 1 1 8 1 8 1 8 1 1 S Slave address Wr A Command code A Data byte low A Data byte high A P Receive Byte → Read Data from VCNL3036X01 1 7 1 1 8 1 1 7 1 1 8 1 8 1 1 S Slave address Wr A Command code A S Slave address Rd A Data byte low A Data byte high N P S = start condition P = stop condition A = acknowledge N = no acknowledge Shaded area = VCNL3036X01 acknowledge Fig. 7 - Write Word and Read Word Protocol Rev. 1.0, 12-Aug-2020
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