I have a custom board that has the 960 deserializer on it. I am trying to read register 0 using the main I2C port but I just get a NACK.
I have the VIO voltage set to 3.3V and the I2C signals pulled up to that with 4.7k resistors. I have checked the other voltages and they are OK. I have also checked the clock and that is oscillating at 25MHz.
I have the IDX pin pulled down with 10k which should mean an address of 0x30. I can confirm that I see this address (0x60 on the bus).
The PDB pin is at 1.8V and connected to an RC circuit
Are there any other things that I can check as I am not sure what else I can do.
Thanks
Jon
