Do all speed grade Cyclone IV GX device support ASI? - Do all speed grade Cyclone IV GX device support ASI? Description No. Cyclone ® IV GX support ASI only with -6 / -7 speed grade devices. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Cyclone® IV GX FPGA'] ['novalue'] ['novalue'] ['novalue']