Hi friends..
In my board design of FPGA, I Want to interface the Spartan-3 xc3s400-tq144 with PC/104 ISA bus. I'm new to the interface design. Pls give some suggestion.
Regards
Senthil Chett.
How can i interface Spartan-3 with PC/104.
Sep 17, 2004
3 Replies
S3 is not 5V IO tolerant. You will need to have level shifter to pass from 3.3VIO to 5VIO.
One solution is to use pullup resistor for output and serial resistor for input... Can be OK for proto board
The only solution, for commercial product, is to use specific level shift device between you s3 and the ISA bus port.
Anyway, why not S2 ?
Laurent
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I use a level shifter, an Altera ACEX EP1K50. It is fully 5 volt tolerant and does not have the high startup current requirements of the Virtex based parts (Virtex, Spartan II, Spartan IIE...).
Rick "rickman" Collins
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Hi friend,
May i know what type of signal in Spartan-3 can interface with pc/104 via a level shifter? Pls help me. i'm a new this kind of design. give me some suggestion.
Regards
Senthil chett..
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