Spartan-3E FPGA Family: Functional Description
X-Ref Target - Figure 20
FXINB
FXINA
F8
X
F5
F5
FXINB
FXINA
FX
F6
F5
F5
FXINB
FXINA
FX
F7
F5
F5
FXINB
FXINA
F6
F5
FX
F5
DS312-2_38_021305
Figure 20: MUXes and Dedicated Feedback in Spartan-3E CLB
Table 11: MUX Capabilities
Total Number of Inputs per Function
MUX
Usage
Input Source
For Limited
Functions
For Any Function
For MUX
F5MUX
FiMUX
F5MUX
F6MUX
F7MUX
F8MUX
LUTs
5
6
7
8
6 (4:1 MUX)
11 (8:1 MUX)
20 (16:1 MUX)
37 (32:1 MUX)
9
F5MUX
F6MUX
F7MUX
19
39
79
DS312 (v4.2) December 14, 2018
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Product Specification
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