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Transcript of Figure 9–1 The flip-flop as a storage element. Thomas L. Floyd Digital Fundamentals, 9e Copyright...
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Figure 9–1 The flip-flop as a storage element.
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–2 Basic data movement in shift registers. (Four bits are used for illustration. The bits move in the direction of the arrows.)
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–3 Serial in/serial out shift register.
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Figure 9–4 Four bits (1010) being entered serially into the register.
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–5 Four bits (1010) being serially shifted out of the register and replaced by all zeros.
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Figure 9–6 Open file F09-06 to verify operation.
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Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–7 Logic symbol for an 8-bit serial in/serial out shift register.
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–8 A serial in/parallel out shift register.
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
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Figure 9–9
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Figure 9–10 The 74HC164 8-bit serial in/parallel out shift register.
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Figure 9–11 Sample timing diagram for a 74HC164 shift register.
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Figure 9–12 A 4-bit parallel in/serial out shift register. Open file F09-12 to verify operation.
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Figure 9–13
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Figure 9–14 The 74HC165 8-bit parallel load shift register.
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Figure 9–15 Sample timing diagram for a 74HC165 shift register.
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–16 A parallel in/parallel out register.
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Figure 9–17 The 74HC195 4-bit parallel access shift register.
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Figure 9–18 Sample timing diagram for a 74HC195 shift register.
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Figure 9–19 Four-bit bidirectional shift register. Open file F09-19 to verify the operation.
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Figure 9–20
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Figure 9–21 The 74HC194 4-bit bidirectional universal shift register.
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Figure 9–22 Sample timing diagram for a 74HC194 shift register.
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Figure 9–23 Four-bit and 5-bit Johnson counters.
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Figure 9–24 Timing sequence for a 4-bit Johnson counter.
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Figure 9–25 Timing sequence for a 5-bit Johnson counter.
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Figure 9–26 A 10-bit ring counter. Open file F09-26 to verify operation.
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Figure 9–27
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Figure 9–28 The shift register as a time-delay device.
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Figure 9–29
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Figure 9–30 Timing diagram showing time delays for the register in Figure 9–29.
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Figure 9–31 74HC195 connected as a ring counter.
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Figure 9–32 Timing diagram showing two complete cycles of the ring counter in Figure 9–31 when it is initially preset to 1000.
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Figure 9–33 Simplified logic diagram of a serial-to-parallel converter.
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Figure 9–34 Serial data format.
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Figure 9–35 Timing diagram illustrating the operation of the serial-to-parallel data converter in Figure 9–33.
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Figure 9–36 UART interface.
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Figure 9–37 Basic UART block diagram.
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Figure 9–38 Simplified keyboard encoding circuit.
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Figure 9–39 Logic symbol for the 74HC164.
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Figure 9–40 Logic symbol for the 74HC194.
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Figure 9–41 Sample test pattern.
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Figure 9–42 Basic test setup for the serial-to-parallel data converter of Figure 9-33.
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Figure 9–43 Proper outputs for the circuit under test in Figure 9-42. The input test pattern is shown.
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Figure 9–44 Basic block diagram of the security system.
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Figure 9–45 Basic logic diagram of the security code logic.
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Figure 9–46
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Figure 9–47
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Figure 9–48
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Figure 9–49
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Figure 9–50
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Figure 9–51
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Figure 9–52
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Figure 9–53
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Figure 9–54
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Figure 9–55
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Figure 9–56
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Figure 9–57
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–58
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–59
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–60
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–61
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–62
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–63
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–64
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–65
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–66
Thomas L. FloydDigital Fundamentals, 9e
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Figure 9–67
Thomas L. FloydDigital Fundamentals, 9e
Copyright ©2006 by Pearson Education, Inc.Upper Saddle River, New Jersey 07458
All rights reserved.