Micromod RetroPAK: SLC Configuration Manual - Manual (Page 245)

Function Code 14 - Summer
GENERAL DESCRIPTION
This function computes the algebraic sum of up to four inputs with unity gain.
The output equation is:
Output (EU) = S1 + S2 + S3 + S4
UTILIZATION
The MOD 30ML/MODCELL compound FC14 used here has an EX function block
(Expression block) with four inputs S1, S2, S3 and S4. Output value is the algebraic sum
of the four input signals
Figure 14 .1.
Function Code 14
EXPLANATION
Function code 14 can also be used as a 2 input or a 3 input adder by specifying values for
the unused inputs as zero and by not connecting them to any attributes.
See the Input configuration page of the EX block in the next figure.
14 - 1