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LP5813: If we use LP5813AYBHR Do you know what's I2C address?

ken Hsiao
Prodigy 30 points
Part Number: LP5813

Hi TI team

If we use LP5813AYBHR

Do you know what's I2C address?

Because we don't know what's 8th bit 9th bit mean

Ken

  • 0
    TI__Mastermind 20515 points

    Hi Hsiao,

    It's because LP581x family has too many internal register. Therefore, the 8-bit can't completely include all register address. You can refer the below register table below and for example, the register address of TSD_Config_Status has been reached to 0x300h, convert it to binary (0x300h --> 11 0000 0000). Therefore, the Register Address bit8 and bit9 is 11 based on the TSD_Config_Status.

    BR, Jared

  • 0 in reply to Jared Zhou
    Prodigy 30 points

    So, For the CHIP ID we just care about bit3 to bit 7 right?

    For example LP5813AYBHR 10100 BIN--> 14 HEX so the address is 14 

  • 0 in reply to ken Hsiao
    TI__Mastermind 20515 points

    Hi Hsiao,

    If you use our GUI, yes the chip address is 0x14 since we separate the slave address and register address into the GUI programming. But if you use your own MCU, the slave address should be 101 0000 --> 50 HEX.

    BR, Jared