AM2631: How to connect to a device with a 25-bit address using EMIF

O.H,

Please expect a delayed response due to the Diwali holiday in India.

Regards,

Brennan

Hi O.H,

In AM263x,GPMC has 16 data lines (GPMC0_AD[0-15] ) and 22 address lines GPMC0_A[0-21].

O.H said:

The customer's FLASH memory requires a 25-line address bus, but the AM2631 only has a 21-line address bus.

Unfortunately, 25 address-line non-multiplexed interface is not supported by GPMC interface in AM263x. But GPMC can support upto A26 (address line 26) incase of Multiplexed Address Data 16-Bit device. For more information please refer to Table 13.161 GPMC Pin Multiplexing Options in AM263x TRM

Regards,
Rijohn

Hi Rijohn

Thank you for your supports.

Rijohn Pius said:

But GPMC can support upto A26 (address line 26) incase of Multiplexed Address Data 16-Bit device. For more information please refer to Table 13.161 GPMC Pin Multiplexing Options in AM263x TRM

Am I correct in thinking that there is no driver that supports this use case? (Multiple devices & asynchronous Flash)
Are there plans to add one in the future?

Refer to AM62x MCU+ SDK 10.00.00

Best regards,
O.H