shiftregister_counter

[seemagoyal44]

can anyone explain what are the connections when counter counts the contents of say 8 bit shift register...means how the both work together...what are the conneections....

 

[vamsi_addagada]

hi
module bit_8_ltst_rtst(Q,clk,rst,cntl,D);
output[7:0]Q;
input[7:0]D;
input clk,rst,cntl;
reg[7:0]Q;
always @ (posedge clk or negedge rst)
begin
if(rst)
Q<=1'b0;
else if(cntl)
Q<=D>>5;
else
Q<=D<<5;
end
endmodule
vamsi

 

[fail1]

Two of the most common types of shift register counters are ie: the Ring counter and the Johnson counter. They are basically shift registers with the serial outputs connected back to the serial inputs in
order to produce particular sequences. These registers are classified as
counters because they exhibit a specified sequence of states

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