Answers Database
1.5i, 2.1i Map - A level of logic is used for inverter between IBUF and Register.
Record #6194
Problem Title:
1.5i, 2.1i Map - A level of logic is used for inverter between IBUF and Register.
Problem Description:
Here's the circuit config that's causing the problem:
IBUF --> INV --> FF (d-pin)
The mapper does not push the INV forward because the load is a FF. It does not
push the INV backward because the driver is an IBUF.
.
Solution 1:
This problem will be corrected in the first major release (as yet unnamed) after version 2.1i.
End of Record #6194 - Last Modified: 06/26/99 14:18 |
