MODULE div455
title 'frequency divider'
div455 device 'P22V10';
" Inputs
CLK pin 1;
" Internal
S8,S7,S6,S5,S4,S3,S2,S1,S0 pin 22,21,20,19,18,17,16,15,14 istype 'reg';
" Outputs
DP pin 23 istype 'reg';
" Constants
H,L,X,C,Z = 1,0, .X., .C., .Z.;
Counter = [S8..S0];
EQUATIONS
Counter.clk = CLK;
when (Counter==511) then DP:=!DP;
when (Counter==511) then Counter :=57;
when !CLK then Counter := Counter+1;
END div455
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