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CLK

D. D. Q. Q. C. C. Figure 1. X. G12. A. G1. Y. G13. B. G11. G8. G2. C. G3. G6. G9. G7. D. G4. CLK. G10. G5. Dff timings: Tcq= 3ns, Tsu = 2 ns, Thd = 1ns. Input/Output buffer delay = 5ns, all other gates= 4ns. S0. D[7:0]. FSM Fig 2a. D. Q[7:0]. 8. Clk. Clk. Q.

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CLK

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  1. D D Q Q C C Figure 1 X G12 A G1 Y G13 B G11 G8 G2 C G3 G6 G9 G7 D G4 CLK G10 G5 Dff timings: Tcq= 3ns, Tsu = 2 ns, Thd = 1ns Input/Output buffer delay = 5ns, all other gates= 4ns BR 1/99

  2. S0 D[7:0] FSM Fig 2a D Q[7:0] 8 Clk Clk Q 8 0 sclr Start? ld en 1 en ld S1 sclr en ld FSM S2 start CLK $ 85 D $ 80 $ 21 $ 42 $ 10 $ 08 $04 $ 02 Start Ld En Cntr $ 81 ?? $ 80 State S0 S1 S2 ?? BR 1/99

  3. S0 D[7:0] FSM Fig 2b D Q[7:0] 8 Clk Clk Q 8 0 sclr Start? en 1 sclr ld S1 en sclr en ld FSM S2 start CLK $ 85 D $ 80 $ 21 $ 42 $ 10 $ 08 $04 $ 02 Start Sclr En Cntr $ 00 $ 01 $?? ?? State S0 S1 S2 ?? BR 1/99

  4. S0 D[7:0] FSM Fig 2c D Q[7:0] en 8 Clk Clk Q 8 0 sclr Start? en 1 ld S1 sclr sclr en ld FSM S2 start CLK $ 85 D $ 80 $ 21 $ 42 $ 10 $ 08 $04 $ 02 Start En Sclr Cntr ??+1 $??+2 ??+3 $ 00 ?? State S0 S1 S2 ?? BR 1/99

  5. S0 D[7:0] FSM Fig 2d D Q[7:0] ld 8 Clk Clk Q 8 0 sclr Start? en 1 ld S1 en sclr en ld FSM S2 start CLK $ 85 D $ 80 $ 21 $ 42 $ 10 $ 08 $04 $ 02 Start ld En Cntr $80 $85 $ 86 ?? State S0 S1 S2 ?? BR 1/99

  6. * * * * * * Figure 3 N1 a T01 1-a T00 T11 T10 1-a N4 N3 N5 N6 b N2 + + N7 1-b N8 N9 N10 + N11 Y BR 1/99

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