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NXP / i3c-slave-design

MIPI I3C Basic v1.0 communication Slave source code in Verilog with BSD license to support use in sensors and other devices.
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Are unhandled CCCs passed through to the mr_* bus? #19

Closed kurtrad1 closed 4 years ago

kurtrad1 commented 4 years ago

I do not see a way to configure this I3C so that it passes any unimplemented CCCs through to the magic bus. Am I missing something? I would like to implement a global CCC in the vendor reserved space.

pkimelman-nxp commented 4 years ago

I do not see a way to configure this I3C so that it passes any unimplemented CCCs through to the magic bus. Am I missing something? I would like to implement a global CCC in the vendor reserved space.

If you enable for CCCs, it always does. parameter MAGIC_RULES = 4'b0000,// bits for rules. [0]=RW vs. WO, [1]=CCCs, [2]=no idx Set the CCC one. It will pass all unhandled CCCs through. The mr_trans_ccc_done port is pulsed to indicate it is a CCC.

kurtrad1 commented 4 years ago

Thanks for the reply. I was looking in the wrong place which was the ENA_CCC_HANDLING parameter. I had come across the MAGIC_RULES parameter and had set that bit correctly.