A Novel Hardware Systolic Architecture of a Self-Organizing Map Neural Network

Table 3

Step times of parallel SOM in on-line learning.

Phase	Equation	Number of cycles (clk) SOM (P = Q = 16)
Calculating distance	td = Dimx + 2	34
Propagation time	tp = P + Q − 1	31
Competition time (location of neighbouring)	tv	1
Updating time	tupd = Dimx + 1	33
Decision time	tc = td + tp	65
Weight adapting time	ta = tv + tupd	34
Learning time	tl = tc + ta	99