Answers Database
4000EX/XL: Can I use both the Output FF (OFD) and the Output MUX (OMUX2) of an IOB at the same time?
Record #1787
Product Family: Hardware
Product Line: 4000
Product Part: 4000
Problem Title:
4000EX/XL: Can I use both the Output FF (OFD) and the Output MUX (OMUX2) of an IOB at the
same time?
Problem Description:
The 2:1 ouput MUX and the output FF of the 4000EX IOB can not
be used at the same time.
Solution 1:
The output flop and the output mux at the same time. One or
the other drives out the pad.
When the output flop is being used(OFD) :
IOB.OK is routed to the clock input
IOB.O is routed to the data input
IOB.CE is routed to the CE input
When the output mux is being used(OMUX2) :
IOB.OK is routed to the mux select
IOB.O is routed to D1
IOB.CE is routed to D2
End of Record #1787 - Last Modified: 05/30/97 14:33 | 
