Tutorial IV: Nios II Processor Hardware Design - Rapid Prototyping of Digital Systems - page 355

Figure 17.4 Beginning a Nios II design in the SOPC Builder.
17.4 Adding a Nios II Processor
The first component that you will add to your Nios II processor design is the
processor core itself. In the list of components on the left-hand side of the
SOPC Builder, the Nios II Processor component. Click the Add… button at
the bottom of the component list.
When a component is added to your system, a dialog box will appear that
allows you to select options and set specific parameters for this particular
implementation. For the Nios II processor, the dialog box shown in Figure 17.5
will appear. This first selection will determine the general parameters of the
Nios II processor. Notice that there are three general configurations allowed
that vary in size, performance, and functionality. Select the middle
configuration, Nios II/s as shown in Figure 17.5. In the Hardware Multiply
field, select Embedded Multipliers , and click Next to continue.
The next dialog box allows you set the size of the instruction cache in the Nios
II processor. Keep the default value (4 KB), and click Next twice to advance to
the JTAG Debug Module dialog box.