I intend to use the USB-8451 to communicate with a large number of I2C devices.
A power switching and monitoring device will contain a CAT9555 (An I2C DIO chip) and 3 x I2C current monitors.
there will be 64 of these power switching thingys.
I need some way of routing the I2C bus to the correct power switching thingy.
The DIO lines will be in use for over-current alarm inputs.
Could I use the API to put an address word on the SPI Chip Select lines even though I am not doing SPI communication?
I suspect that I could only drive one CS line at a time ?
Or would it be easier to just use a separate USB DIO ?