SPI interface

Rabbit Rabbit Software
1

I have a question on SPI interface, it looks like the TX and RX clock is on one pin for instance port B bit 0 is the clock for both. Is it possible to use CLKA pin for Receiving data and Port B bit 0 for Transmitting clk?

Thanks,

1 Like
2

Hello, Which Rabbit module are you talking about?

3

Hi,

The RCM 6700

4

Hi the RCM6700

5

My understanding of SPI is that there’s only a single clock signal for both sending and receiving, and it’s supplied by the master device.

https://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus

So if you’re using SPI, I don’t think it’s possible to use different pins for the clock. My recollection is that the master has to send (typically 0xFF) while it’s receiving from the slave.