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1.2. About the LogicTile Express 13MG daughterboard

The daughterboard is designed as a platform for developing systems based on Advanced Microcontroller Bus Architecture (AMBA®) that use the Advanced eXtensible Interface (AXI™) or custom logic for use with ARM processors.


The daughterboard is designed only to be used with a Versatile Express μATX Motherboard.

The daughterboard contains the following devices:

  • Two Xilinx Virtex-6 FPGAs, XC6VLX760, and XC6VLX550T:

    • Speed grade -1.

  • Two Flash memories for FPGA images, one for each FPGA.

  • Two Daughterboard Configuration Controllers to configure the FPGAs, one for each FPGA.

  • 16MB of on-board 32-bit ZBT RAM, two independent banks of 8MB each.

  • Up to 4GB of external DDR2 64-bit memory using Small Outline Dual In-line Memory Module (SO-DIMM).

  • HDRXL header on the bottom side of the board with two High-Speed Buses (HSB), one Master, one Slave, that connect to the other daughterboard site.

  • HDRYL header on the bottom side of the board with five buses to the motherboard.

  • HDRXU and HDRYU headers on the top side of the board for expansion.

  • Serial Advanced Technology Attachment (SATA) Host (H) and Device (D) connectors.

  • JTAG and Trace debug interfaces.

  • Eight general-purpose Dual In-line Package (DIP) switches.

  • 22 status and user LEDs:

    • Eight green user LEDs connected to each Daughterboard Configuration Controller.

    • One green user LED connected to each FPGA.

    • One green status LED for each FPGA indicating FPGA configured.

    • One red status LED for each FPGA indicating FPGA over temperature.

Figure 1.1 and Figure 1.2 show the physical layout of the daughterboard.

Figure 1.1. Daughterboard layout, top

Figure 1.1. Daughterboard layout, top


When the daughterboard is fitted to the motherboard, the top side of the board faces away from the motherboard.

Figure 1.2. Daughterboard layout, bottom

Figure 1.2. Daughterboard layout, bottom


The bottom side of the daughterboard is the side that connects to the motherboard.

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