Part 4: Qspi Flash - Alinx AXKU040 User Manual

Part 4: QSPI Flash

The AXKU040 FPGA development board is equipped with one 128MBit
Quad-SPI FLASH, and the model is N25Q128A, which uses the 3.3V CMOS
voltage standard. Due to the non-volatile nature of QSPI FLASH, it can store
FPGA configuration Bin files and other user data files in use. The specific
models and related parameters of QSPI FLASH are shown in Table 4-1.
Position
U14
QSPI FLASH is connected to the dedicated pins of BANK0 of the FPGA
chip. The clock pin is connected to CCLK0 of BANK0, and other data signals
are connected to D00~D03 and FCS pins. Figure 4-2 shows the hardware
connection of QSPI Flash and FPGA Chip.
QSPI Flash pin assignments:
Signal Name
QSPI_CCLK
QSPI0_CS_B
QSPI0_IO0
QSPI0_IO1
QSPI0_IO2
QSPI0_IO3
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KINTEX UltraScale+ FPGA Board AXKU040 User Manual
Model
N25Q128A
Table 4-1: QSPI FLASH Specification
Figure 4-2: QSPI Flash Schematic
Capacity
128M Bit
FPGA Pin Name
CCLK_0
RDWR_FCS_B_0
D00_MOSI_0
D01_DIN_0
D02_0
D03_0
Factory
Numonyx
FPGA Pin Number
AA9
U7
AC7
AB7
AA7
Y7
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