Adder Tree

Block: Adder Tree (adder_tree)

Block Author: Aaron Parsons

Document Author: Aaron Parsons

Contents Summary Mask Parameters Ports Description

Summary

Sums all inputs using a tree of adds and delays.

Mask Parameters

Parameter	Variable	Description
No. of inputs.	n_inputs	The number of inputs to be summed.
Add Latency	latency	The latency of each stage through the adder tree.

Ports

Port	Dir	Data Type	Description
sync	in	Boolean	Indicates the next clock cycle containing valid data
din	in	Inherited	A number to be summed.

Description

Sums all inputs using a tree of adds and delays. Total latency is ceil(log₂(n_inputs)) * latency.