SPRADO2A November 2024 – December 2024 AM62A3 , AM62A3-Q1 , AM62A7 , AM62A7-Q1 , AM62D-Q1
Verify the number of attached devices connected to the GPMC interface.
The recommendation is to connect the GPMC interface to one device in synchronous mode. Using multiple devices or CSns requires splitting the GPMC clock (and other interface signals) on-board, which can cause signal integrity issues.
A detailed timing analysis is recommended when interfacing multiple devices in asynchronous mode. Interfacing multiple devices is not recommended. When interfacing multiple devices in asynchronous mode, the control signals are required to be routed to multiple devices. The split routing and loading (trace length and number of devices) issues have an affect on custom board performance.