VHDL Programming

is small enough, removing the hierarchy will create a smaller and faster design. Finally IO pads will not be added to the design ...

button as shown in Figure 15-9. The report generated will look like the one shown below: ->report_area -cell_usage -all_leafs ...

TRI apex20e 16 x 1 16 TRIs VCC apex20e 1 x 1 1 VCC alu work 1 x 1 1 GND 156 156 LCs apex20_lcell_normal apex20e 33 x 1 33 LCs co ...

reg work 1 x 11 11 LCs 1 1 GND reg work 1 x 16 16 LCs 1 1 GND regarray_notri work 1 x 1 1 VCC 128 128 Memory Bits shift work 1 x ...

Number of nets : 198 Number of instances : 61 Number of references to this view: 0 total accumulated area: DELAY flex10 8 x Numb ...

CPU Design: Synthesis Results 367 Figure 15-10 ...

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Chapter 16 Place and Route This chapter discusses the process of implementing the synthesis netlist of the CPU design into a tar ...

370 Chapter Sixteen Place and Route Process The place and route process places each macro from the synthesis netlist into an ava ...

Place and Route 371 RAM. The place and route tool generates the RAM image to be loaded into the RAM on the device. The routing c ...

lengths that allow connections to adjacent logic areas. Sometimes, longer connections are needed, and either a longer line must ...

Placing and Routing the Device The target device for the CPU design, as mentioned in earlier chapters, is an FPGA device. The de ...

of this wizard is shown in Figure 16-6. This introduces the concept of a wizard to the user. The next step is to select the dire ...

Place and Route 375 Figure 16-8 Specify Project Input File. Figure 16-7 New Project Settings. ...

376 Chapter Sixteen Figure 16-9 EDA Tool Settings Dialog Box Figure 16-10 Specify Target Device. ...

of driving all the flip flops in the design. This requires a clock buffer rather than a standard buffer. In Figure 16-11 the clo ...

378 Chapter Sixteen Figure 16-12 Results after Compilation. ...

Chapter 17 CPU: VITAL Simulation The last step in the high-density FPGA design process is to run gate-level timing simulation of ...

380 Chapter Seventeen The VITAL process is shown in Figure 17-2. The place and route tools generate two VITAL-compliant simulato ...

CPU:Vital Simulation 381 VITAL Library One of the reasons VITAL was developed was because there were no standard methods of desc ...