Xilinx Answer #788 : **Obsolete Solution**: CPLD: Attribute Assignment: Using the LOC attribute for Function block and macrocell assignment (XEPLD v6.0)

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**Obsolete Solution**: CPLD: Attribute Assignment: Using the LOC attribute for Function block and macrocell assignment (XEPLD v6.0)

Record #788
Product Family: Hardware

Product Line: 9500

Product Part: 9500

Problem Title:

**Obsolete Solution**: CPLD: Attribute Assignment: Using the LOC attribute for Function block and macrocell assignment (XEPLD v6.0)

Problem Description:

Urgency: Standard

General Description:

With the XEPLD v6.0 tools, some components can be mapped to a specific
function block and macrocell.

Solution 1:

Use the following schematic attribute syntax:

LOC=FB<n>_<m>

where <n> is the function block number and <m> is the macrocell
number.

Example: To place a flip-flop into macrocell 5 of Function Block 3, attach
the following attribute to the FF:
LOC=FB3_5

**NOTE** The LOC attribute is not valid on all library components. The
following is the list of symbols that can accept this form of the LOC attribute:

AND* NAND* OR* NOR* XOR2 XNOR2 XOR3 XNOR3 XOR4 XNOR4 INV BUF BUFT FDCP FBMC FFBMC

End of Record #788 - Last Modified: 07/29/99 18:24

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