SPRUIE9D May 2017 – May 2024 DRA74P , DRA75P , DRA76P , DRA77P
One reason for the BL to stall write requests is that because back pressure usually exists on the system memory and requests cannot be issued as fast as required. In that case the BL must stall requests from the initiator modules. The BL module cannot know whether stalling the request will lead to an initiator overflow or not. The RSZ module can support back pressure from the BL module when it is configured in bypass mode. The input buffer memory can be used to store data from the IPIPE and IPIPEIF modules. If the RSZ input buffer overflows, an interrupt is issued.