SPRUJ52C june 2022 – july 2023 AM69 , AM69A , TDA4AH-Q1 , TDA4AP-Q1 , TDA4VH-Q1 , TDA4VP-Q1
This module provides proxy functions for hosts that need to create large data bursts but can only perform small accesses. Examples of this need are:
All of these require larger data sets, from 12 to 128 bytes, and the storage hardware requires the entire data on the bus in a single burst. Unfortunately, many CPUs cannot produce bursts to device memory, such as registers, and the largest CPU access is typically 8 bytes. Therefore the proxy provides the ability to access the hardware with a single burst, and at the same time allows the CPU to access the same data in smaller accesses.
Figure 10-21 describes Secure Proxy major building blocks.