SPRACU5C June 2021 – September 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
Verify the number of devices connected to the GPMC interface.
It is recommended to connect the processor GPMC interface to a single device in synchronous mode. Using multiple devices (i.e., using multiple CSn) would require splitting the GPMC clock (and other interface signals) on board, which would cause signal integrity issues.
A detailed timing analysis is recommended when interfacing multiple devices (not recommended) in asynchronous mode. When interfacing multiple devices in asynchronous mode, the control signals would have to be routed to multiple devices. The split routing and loading issues will have an affect on performance.