XC3S100E_06 Datasheet, PDF (27/231 Pages) Xilinx, Inc – Configurable Logic Block (CLB)

R
Functional Description
FXINB
FXINA
FXINB
FXINA
F8
X
F5
F5
FX
F6
F5
F5
FXINB
FXINA
F7
FX
F5
F5
FXINB
FXINA
F6
FX
F5
F5
DS312-2_38_021305
Figure 20: Muxes and Dedicated Feedback in Spartan-3E CLB
Table 11: Mux Capabilities
Mux
F5MUX
FiMUX
Usage
F5MUX
F6MUX
F7MUX
F8MUX
Input Source
LUTs
F5MUX
F6MUX
F7MUX
Total Number of Inputs per Function
For Any
Function
For Mux
For Limited
Functions
5
6 (4:1 mux)
9
6
11 (8:1 mux)
19
7
20 (16:1 mux)
39
8
37 (32:1 mux)
79
DS312-2 (v3.4) November 9, 2006
www.xilinx.com
27
Product Specification