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Question about AMBA CHI_C2C spec.A credit

Jinyu Dong 10 months ago

Hi ARM,

In AMBA CHI_C2C spec, flow control credit is independent for different message class, but dose not distinguish message type(Short long)

So does it mean than 1 credit is represent for a corespoding C2C message not care message type? (ReqL/S, DataS/L, Resp/Resp2 consume both 1 corespoding credit?)

The credit base flow control is work for preventing C2C RX buffer from overflow. So does it mean one Short/Long type message、Resp/Resp2 consume the same C2C RX buffer space?

Best Regards.

Top replies

Simone Secchi 10 months ago +1 suggested

Hello Jinyu, Your understanding is correct that crediting in C2C is essentially done per protocol message class, rather than per specific message type. And so there is a degree of abstraction from the...