Does micron N25Q128 Quad SPI memory chip support AS configuration mode

Read the data sheet for the Numonyx/Micron N25Q128 device, and compare it to the op-codes used by the EPCS or EPCQ devices.

http://www.micron.com/products/nor-flash/serial-nor-flash

The N25Q series is Quad-SPI flash, i.e., so its the same as the EPCQ series.

I've looked at the Serial ID codes from devices on several Altera development kits, and although the packages are marked as Altera EPCS devices, the serial IDs all match Micron M25P series devices. Spansion SPI Flash can also be used, however, the ID check needs to be disabled.

Cheers,

Dave