[Figure 1, callout 5]
The Micron dual MT25QU02GCBB8E12-0SIT serial NOR flash Quad-SPI memories are capable of holding the boot image for the Zynq UltraScale+ RFSoC. This interface is used to support QSPI32 boot mode as defined in the Zynq UltraScale+ Device Technical Reference Manual (UG1085).
The dual Quad-SPI flash memory located at U11/U12 provides 4 Gb of non-volatile storage that can be used for configuration and data storage.
- Part number: MT25QU02GCBB8E12-0SIT (Micron)
- Description:
- 2 Gb/256 MB
- 2.7V – 3.6V 24-ball TBGA
- 90 MHz DTR/133 MHz STR
- Datapath width: 8 bits
- Data rate: Various depending on Single/Dual/Quad mode
The configuration and Quad-SPI section of the Zynq UltraScale+ Device Technical Reference Manual (UG1085) provides details on using the Quad-SPI flash memory. For more QSPI details, see the Micron MT25QU02GCBB8E12-0SIT data sheet on the Micron Technology website.
The detailed RFSoC connections for the feature described in this section are documented in the ZCU670 board XDC file, referenced in Xilinx Design Constraints.