236 Perceptron (Neuromeme)

236 : Perceptron (Neuromeme)

  • Author: Dylan Louie
  • Description: A perceptron or a 9 + 10 adder
  • GitHub repository
  • Clock: 0 Hz

How it works

Reads from two 8-bit input and creates a weighted sum
of the 16 bits.

The 8-bit wieights are default 10000000 and are unuptatable. (10000000 represents 0.5 if the you conceptualize a . on the far left or represents 128 if you conceptualize a . on the far right)

If the weighted sum is greater than the threshold, 11111110, than it will classify the input as 1 otherwise it will classify it as 0.

9 + 10 = 21

Credit/Thanks to my Professor: UCSC's Neuromorphic Lab's Jason K Eshraghian Ph.D.

How to test

Any input with all 0's should be classified as 0.

Math:

Note: The threshold is 11111110 which can be thought of as 0.99993896484

w0i0 + w1i1 + ... + w15*i15

0.50 + 0.50 + ... + 0.5*0 = 0

Any input with fifteen 0's and one 1's should be classified as 0.

Math:

w0i0 + w1i1 + ... + w15*i15

0.51 + 0.50 + ... + 0.5*0 = 0.5

Any input with two or more 1's should be classified as 1.

Math:

w0i0 + w1i1 + w2i2 + ... + w15i15

0.51 + 0.51 + 0.50 + ... + 0.50 = 1

0.51 + 0.51 + 0.51 + 0.50 + ... + 0.5*0 > 1

IO

#InputOutputBidirectional
0input 0 asssociated with weight 0Read as an 8 bit output along with other outputsinput 9 asssociated with weight 9
1input 1 asssociated with weight 1Read as an 8 bit output along with other outputsinput 10 asssociated with weight 10
2input 2 asssociated with weight 2Read as an 8 bit output along with other outputsinput 11 asssociated with weight 11
3input 3 asssociated with weight 3Read as an 8 bit output along with other outputsinput 12 asssociated with weight 12
4input 4 asssociated with weight 4Read as an 8 bit output along with other outputsinput 13 asssociated with weight 13
5input 5 asssociated with weight 5Read as an 8 bit output along with other outputsinput 14 asssociated with weight 14
6input 6 asssociated with weight 6Read as an 8 bit output along with other outputsinput 15 asssociated with weight 15
7input 7 asssociated with weight 7input 16 asssociated with weight 16

Chip location

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