View Single Post
Old 05 February 2016, 19:06   #85

Join Date: Aug 2007
Location: The South of nowhere
Age: 40
Posts: 1,602
Originally Posted by IanP View Post
The Zorro II bus is too slow I think. Using a CPU across the Zorro II bus to manipulate the data in an FPGA graphics card based on the Vampire/Apollo architecture would be a big performance hit. A Full HD 16 bit frame is about 4MB so you wont get many frames per second from it with heavily animated images.
Even though Zorro II is limited regarding memory & bandwith, there have numerous graphic cards with 4MB that work admirably well on such systems. Just to name a few: CyberVision 64/3D, Picasso IV and Merlin.

The practical advantage of using Zorro II as a bus interface is that you can serve A2000, A3000 and A4000 users (plus its model variants) with a single design. You can even enable a Zorro III mode for enhanced bandwith on systems that have such capability, as it has been done before on numerous ocasions.
gulliver is offline  
Page generated in 0.03885 seconds with 10 queries