SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
For a shared RAM, multiple accesses can happen at a given time. The maximum number of accesses to any shared RAM at any given time depends on the type of shared RAM. On this device, a combination of a fixed and round robin scheme is followed to arbitrate multiple access at any given time. Accesses from the same controllers are arbitrated in a fixed priority manner, but the accesses from different controllers are arbitrated using the round robin scheme.
The following is the order of fixed priority for CPU accesses:
The following is the order of fixed priority for CLA accesses:
Figure 3-17 represents the arbitration scheme on global shared memories:
Figure 3-18 represents the arbitration scheme on local shared memories.