Answers Database
XPLA Professional: What does the XPLA Property "TRI-STATE" do?
Record #7533
Product Family: Software
Product Line: CoolRunner
Product Part: XPLA Fitter
Problem Title:
XPLA Professional: What does the XPLA Property "TRI-STATE" do?
Problem Description:
Urgency: Standard
General Description: What does the XPLA Property "TRI-STATE" do?
Solution 1:
XPLA Software supports two properties that will disable the weak
pulldown resistor on unused pins and leave these pins tri-stated. This
is useful when there are unused pins connected to a bus. For example:
This disables pulldown on all unused pins and tri-states them:
xpla property 'tri-state all';
This disables pulldown on u1 at pin 4 and tri-states that pin:
xpla property 'u1:4 tri-state';
Note that a pin name must be specified even though the pin is unused.
End of Record #7533 - Last Modified: 09/14/99 15:46 | 
