Answers Database

The 4025E does not have address pins A18:A21, these are on EX/XL devicesonly.


Record #1719

Problem Title:
The 4025E does not have address pins A18:A21, these are on EX/XL
devicesonly.



Problem Description:
Keyword: PROM, Addresses, configuration,4000E,4000EX, 4000XL

The 4025E does not have pins A18:A21, these are on the

4000EX/XL family of devices only.


Solution 1:

If the user uses a PROM with these lines attached to the fpga,
either add pulldowns, or use the Parallel Down configuration
mode.


See also Solution # 1984.



End of Record #1719