SPRUIU1C July 2020 – February 2024 DRA821U , DRA821U-Q1
The DDR controller offers a flexible paging policy that allows open page operation, closed page operation, or an auto-precharge-per-command option that allows both modes simultaneously. Auto-precharge-per-command allows marking a particular controller or transaction (for example, a CPU cache) as a closed-page transaction. This type of transaction reduces power and improves latency for the next transaction to a different row in the same SDRAM bank. Other transactions can be marked as open page transactions. This type of transaction reduces power and improves latency and bandwidth to the next transaction to the same row in the same SDRAM bank.