Portable Amiga anyone??

[jkonstan]

I would use the PSP TFT display (480x272 with 24bit RGB) since these are cheap @ $30 USD and readily available.
There is presently only a HDL 68000 CPU core and not a HDL 68020 CPU core.
If you use DDR_SDRAM instead of plain SDRAM, you will get a larger bandwidth and slew rate control in the DDR output drivers. Also, unless you decide to make Amiga specific interfaces, the Amiga schematics may not be of much use to you. You should probably stay with industry standard VGA monitor port, PS2 keyboard/mouse ports, SD card interface, DB-9 Serial port  etc....

[jkonstan]

The original Amiga had Chip RAM & Fast RAM where CPU could access Fast RAM alone and CPU & custom chipset could access the Chip RAM. The current MiniMIG core consumes a fair amount of memory bandwidth using a single external memory bus architecture (SRAM x16); however, DDR should work fine for this design. SDRAM has been used as well on DE1/DE2; however, you should consider running SDRAM at 133Mhz with CAS2 access. You do not want to build such a nice platform and run out of memory bandwidth when MiniMIG core is enhanced (AGA graphics, USB, Ethernet, etc ....).

Yes i agree with the psp lcd, its a nice size and cheap...
With the ram, i would need more info, let me explain, we could put a lump of DDR2 on the board no problem, but would it matter?
Lets say the fpga is running at 100mhz the slow SDRAM is faster than that so would 333MHz DDR make much difference? even if we had a 68020 running at 50mhz........
 Need input....
As for the ports i was considering a hdmi port for the VGA as you can buy or make a hdmi to vga cable, the reason is the size of the connector. You could also get comp video and svideo out of the same connector, maybe???
I was also thinking of using the mini sd card (as used in phones etc) again because of the size.
And another port(type unkown) which puts out the rs232, jtag for the arm and fpga, that would be expanded on a small breakout board, used only for developing.
The arm chip i have in mind is the LPC2388, this little bute has 96k sram, 512k flash, USB host, device, OTG, ethernet(maybe we can find a wifi chip for it) is low power and only requires a 3.3v supply, and its cheap....