The nRF7002 DK has a 64 Mb external flash memory. The memory is connected through a regular high-speed Serial Peripheral Interface (SPI) .
The memory is connected to the chip using the following General-Purpose Input/Output (GPIO)s:
nRF5340 GPIO | Flash memory pin |
---|---|
P0.11 | CS |
P0.08 | SCLK |
P0.09 | MOSI |
P0.10 | MISO |
By default, the power supply of the external memory comes from the VDD domain. There are two optional power sources for keeping the external memory powered: VDD and VDD_MEAS. If VDD_MEAS is selected, the power consumption of the external memory is added to the nRF7002 current measured on P22. See the following table for configuration:
Power source | Solder bridge | Default state |
---|---|---|
VDD | SB8 | Shorted |
VDD_MEAS | SB10 | Open |