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TLK1101, SCL SDA question

Daniel Dillow
Prodigy 10 points

Other Parts Discussed in Thread: TLK1101E

We are using TLK1101E in our Active SFP+ cable assembly.

The SCL and SDA pins are connected to our 2k serial eeprom device. My questions is... How often does TLK1101E ping the I2C bus and is it at regular intervals? Thank yoU!

  • 0
    TI__Prodigy 510 points

    The TLK1101E has an I2C slave interface.

    Make sure there are no glitches during power up. That might confuse the state machine. Workaround for the reset:
    After an start condition (neg. SDA edge while SCK is in high state) eight subsequent negative edges of the serial clock SCK read the slave address. Keeping SDA low during these eight clock transitions will result in resetting the I2C FSM into idle state.

    Write and Read sequence is below.

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