[Figure 1, callout 7]
VCU128 boards host a Micron MT25QU02GCBB8E12-0SIT serial NOR flash Quad SPI flash memory capable of holding the boot image for the XCVU37P FPGA. This interface supports the QSPI32 boot mode as defined in the UltraScale Architecture Configuration User Guide (UG570).
The Quad SPI flash memory U46 provides 2 Gb of non-volatile storage that can be used for configuration and data storage.
- Part number: MT25QU02GCBB8E12-0SIT (Micron)
- Supply voltage: 1.8V
- Datapath width: 4 bits
- Data rate: various depending on single/dual/quad mode
The Quad SPI circuitry is shown in the following figure.
The connections between the Quad SPI flash memory and the XCVU37P FPGA are listed in the following table.
| XCVC37P (U1) Pin | Net Name | U46 Quad SPI | |
|---|---|---|---|
| Pin # | Pin Name | ||
| AW15 | QSPI_DQ0 | D3 | DQ0 |
| AY15 | QSPI_DQ1 | D2 | DQ1 |
| AY14 | QSPI_DQ2 | C4 | DQ2_W_B |
| AY13 | QSPI_DQ3 | D4 | DQ3_RST_HLD_B |
| BD14 | QSPI _CLK | B2 | C |
| BC15 | QSPI_CS_B | C2 | S_B |
The UltraScale Architecture Configuration User Guide (UG570) provides FPGA configuration details. For more Quad SPI component information, see the Micron MT25QU02GCBB8E12-0SIT data sheet at the Micron Technology website.