Answers Database

7336, PROMs: Using the 7336 as a virtual SPROM


Record #1918

Problem Title:
7336, PROMs:  Using the 7336 as a virtual SPROM


Problem Description:
Keywords:  PROM, 7336, 1700 virtual serial prom SPROM

Urgency:  standard:

General Description:
An ultra low cost XC7336 CPLD based design is available to
support serial programming of high density XC4000E/EX FPGAs.
The application emulates a 1M-bit SPROM.

The design consists of an XC7336 CPLD, a byte-wide EPROM, and
an on-board oscillator.  The design was created using
XABEL-CPLD and simulated for timing using Viewlogic's
Viewsim(TM) simulator.	A prototype was built and tested on a
generic circuit board.



Solution 1:

An application note on this topic is available on the Xilinx
Internet Web Page.  (Xilinx XAPP079)



End of Record #1918