Tell me about the FPGAs you are using?

The interviewer often ask about the FPGAs boards you are currently using or frequently used.

The following is an example about what answer we expected:

I’ve been used multiple product series from Xilinx and Altera:

• Spartan is a 45nm technology low-cost FPGA
• Virtex is a 28nm technology one
• Zynq incorporates dual-core ARM processor on the the same die with Artix-7 series.

Currently, I’m using a ZedBoard which contains an Xilinx Zynq-7000 AP SoC XC7Z020-CLG484

• Dual-core ARM Cortex-A9 @ 667Mhz
• Memory:
  • 512 MB DDR3 Memory
  • 256 Mb Quad-SPI Flash
  • 4GB SD Card
• Onboard USB-JTAG Programming
• 1Gbps LAN Ethernet
• USB OTG 2.0 and USB-UART
• PS & PL I/O expansion
• HDMI output

The Zynq-7000 XC7Z020 FPGA contains:

• 85k logic cells
• ~1.3 million ASIC gates
• 53,200 look-up tables (LUTs)
• 106,400 flip-flops
• 560 kB of BRAM organized to 140 units, each containing 2048 by 18-bit storage
• 220 DSP slices (Multiplier-Accumulator) organized to 18×25
• 276 GMACs