48
Figure 3-32 Connections Between Cyclone V SoC FPGA and QSPI Flash
Table 3-31
below summarizes the pins on the flash device. Signal names are from the device
datasheet and directions are relative to the Cyclone V SoC FPGA.
Table 3-31 QSPI Flash Interface I/O
Signal Name
FPGA Pin No.
Description
I/O Standard
HPS_FLASH_DATA[0]
PIN_C20
HPS FLASH Data[0]
3.3V
HPS_FLASH_DATA[1]
PIN_H18
HPS FLASH Data[1]
3.3V
HPS_FLASH_DATA[2]
PIN_A19
HPS FLASH Data[2]
3.3V
HPS_FLASH_DATA[3]
PIN_E19
HPS FLASH Data[3]
3.3V
HPS_FLASH_DCLK
PIN_D19
HPS FLASH Data Clock
3.3V
HPS_FLASH_NCSO
PIN_A18
HPS FLASH Chip Enable
3.3V
3
3
.
.
7
7
.
.
6
6
M
M
i
i
c
c
r
r
o
o
S
S
D
D
The board supports Micro SD card interface using x4 data lines. And it may contain secondary boot
code for HPS.
Figure 3-33
shows the related signals.
Finally,
Table 3-32
lists all the associated pins for interfacing HPS respectively.