External clock use | Cypress Semiconductor
External clock use
To my understanding the PSoC 4200 has one external clock input that can be routed to the UDB and SCB components.
I'm currently using an oscillator connected to the single external clock input to drive a PLD, which generates some timing signals that are brought out to GPIO pins.
However I also need to implement a SPI slave device using a SCB, which requires an additional external clock input.
Am I correct in assuming that as only on external clock input is available to all SCBs and UDBs, this cannot be done? Are there any workarounds for applications that need to input two separate clock sources from two different pins?