Comparing counter contents for timing critical applications

1. An electrical circuit, comprising:

a first counter circuit A for receiving a first enable signal INC_A and generating a first output signal SIG_A;

a second counter circuit B for receiving a second enable signal INC_B and generating a second output signal SIG_B, wherein the first enable signal INC_A and the second enable signal INC_B are for comparing the first output signal SIG_A to the second output signal SIG_B;

a flip-flop circuit for generating a first status signal defining a first relationship between said first output signal SIG_A and said second output signal SIG_B;

a logic circuit for generating a second status signal defining a second relationship between said first output signal SIG_A and said second output signal SIG_B, wherein the logic circuit electrically connects said first counter circuit A and said second counter circuit B to said flip-flop circuit, wherein an output of said first counter circuit A is electrically connected to a first input of said logic circuit, wherein an output of said second counter circuit B is electrically connected to a second input of said logic circuit, and wherein an output of said logic circuit is electrically connected to an enable input E on said flip-flop circuit;

a first OR gate electrically connected to an input PRE of the flip-flop circuit, wherein said first OR gate is for receiving a signal PRE_A and a signal RST_B, Oring said signal PRE_A and said signal RST_B to generate a first ORed signal, and applying said first ORed signal to said input PRE of the flip-flop circuit; and

a second OR gate electrically connected to an input RST of the flip-flop circuit, wherein said second OR gate is for receiving a signal PRE_B and a signal RST_A, Oring said signal PRE_B and said signal RST_A to generate a second ORed signal, and applying said second ORed signal to said input RST of the flip-flop circuit.

2. The electrical circuit of claim 1 , wherein said output of said logic circuit comprises said second status signal, wherein second status signal comprises a signal SIG_A=B representing said first output signal SIG_A being equal to said second output signal SIG_B, and wherein said signal SIG_A=B is applied to said enable input E on said flip-flop circuit.

3. The electrical circuit of claim 2 , wherein said signal SIG_A=B comprises a logical high.

4. The electrical circuit of claim 2 , further comprising a first logic gate, wherein an output of said first logic gate is electrically connected to a data input D of said flip-flop circuit, and wherein said first logic gate receives said first enable signal INC_A and said second enable signal INC_B.

5. The electrical circuit of claim 4 , further comprising a second logic gate, wherein said flip-flop circuit comprises a first output Q, wherein an input of said second logic gate is electrically connected to said first output Q, and wherein said first status signal defining said first relationship is generated on an output of said second logic gate.

6. The electrical circuit of claim 5 , wherein said signal SIG_A=B comprises a logical low, and wherein said first status signal defining said first relationship is dependent upon said signal SIG_A=B comprising the logical low and a logical state of said first enable signal INC_A and said second enable signal INC_B.

7. The electrical circuit of claim 6 , wherein said first status signal comprises a signal SIG_A>B representing said first output signal A greater than said second output signal B, and wherein said signal SIG_A>B comprises a logical high.