---

Serie (array) of signals

---

• Defining a serie (array) of signals
  • Fact:

    We often use a serie of signals Examples: The address bus consists of 32/64 bits (signals) The data bus consists of 32/64 bits (signals)

    ---

    ---

  • Defining multiple signals:

    Signal signalName[N]; // Unnamed Sig( signalName, N ); // Named (shorthand) Defines the signals: signalName[0], signalName[1], ..., signalName[N-1]

    Examples:

    Signal x[4]; // Defines: x[0], x[1], x[2], x[3], no display name Sig( x, 4 ); // Defines: x[0], x[1], x[2], x[3], with display name "x"

  ---

  ---

  ---

  ---

• Using an array of signals

  • Ways to use an array of signals

    Each individual signal in an array of signals is identified by an index. Example: Signal x[4]; Individual signals: x[0] x[1] x[2] x[3] Sig( x, 4 ); Individual signals: x[0] x[1] x[2] x[3] An individual signal is used just like any ordinary signal Example: Signal x[4]; Signal out1, out2; And("aa", (x[0],x[1]), out1); And("aa", (x[2],x[3]), out2); You can pass an entire array as parameter to a (C) function (component) Example: Signal x[4]; Signal out; And("aa", x, out1); // Same as: And("aa", (x[3],x[2],x[1],x[0]), out); Note: The order of the signal array is inverted !!!! That's because we often use 0 for the index last (right most) signal