1.4.1 Design Implementation

The following figure shows the top-level Libero design of the PolarFire system services design.

Figure 1-3. Top-Level Libero Design

The following table lists the important I/O signals of the design.

Table 1-4. I/O Signals
SignalDescription
REF_CLK_0Input 50 MHz clock from the onboard 50 MHz oscillator
resetnOnboard reset push button for the PolarFire® device
RXInput signals received from the serial UART terminal
TXOutput signals transmitted to the serial UART terminal
GPIO_OUT[3:0]Onboard LED outputs