SPI Code for RKE Si4010

I’m building a remote-keyless-entry module that uses the Si4010-C2 and I need a clean, well-documented SPI routine that lets my host microcontroller talk to the Si4010 in real time. The code’s main job is device control: reading status registers, pushing configuration bytes on the fly, and toggling the device through its various operating modes while I monitor those changes without latency.

What I expect from you
• A compact C source and header pair (8-bit MCU friendly) that implements full-duplex SPI transfers, chip-select timing and the Si4010-specific command set.
• Example calls that show real-time monitoring (e.g. polling the interrupt/status byte) and dynamic control actions (sleep, TX enable, tune, etc.).
• A short README outlining pin mapping, clock limits, and how to port the routine to another MCU if needed.

Acceptance check
When I compile the code on my side, connect logic-analyser probes and issue the sample commands, the Si4010 must respond exactly per the datasheet timings. Any missed or extra clock edge is a fail.

If you’ve already dealt with the Si4010 or similar RKE transmitters, let me know—proven experience will move this fast.