The nRF7002 EBII uses an expansion header interface to enable the evaluation of the nRF7002 companion IC in combination with compatible boards.
The expansion header connectors are described in the following table.
| Pin | nRF7002 | Default use |
|---|---|---|
| 1 | VDD_IO | Power to VDD IO. |
| 2 | GND | |
| 3 | N.C. | |
| 4 | N.C. | |
| 5 | N.C. | |
| 6 | N.C. | |
| 7 | BUCKEN | Enable power to nRF7002. |
| 8 | VDDIOEN | Enable power to I/O interface. |
| 9 | SPI_MOSI | SPI slave In. |
| 10 | SPI_MISO | SPI slave out. |
| 11 | STAT | Coexistence status 0. |
| 12 | REQ | Coexistence request from host. |
| 13 | SPI_CS | SPI chip select. |
| 14 | SPI_SCLK | SPI clock. |
| 15 | GRANT | Coexistence grant to host. |
| 16 | SW CTRL0 | Switch control 0. Not connected by default. |
| 17 | IRQ | Interrupt request to host. |
| 18 | STATUS1 | Coexistence status 1. Not connected by default. |
| 19 | GND | |
| 20 | VDD_IO | Power to VDD IO. |
| 21 | QSPI D3 | QSPI data line 3. |
| 22 | QSPI SCK | QSPI clock. Not connected by default. |
| 23 | QSPI D0 | QSPI data line 0. Not connected by default. |
| 24 | QSPI D2 | QSPI data line 2. |
| 25 | QSPI D1 | QSPI data line 1. Not connected by default. |
| 26 | QSPI CS | QSPI chip select. Not connected by default. |
| Pin | nRF7002 | Default use |
|---|---|---|
| 1 | VDD_VBAT | Power to regulator for 3.6 V VBAT supply. |
| 2 | GND | |
| 3 | N.C. | |
| 4 | GND |
Access to the nRF7002 EBII General-Purpose Input/Output (GPIO)s is available from the socket of the P1 connector.
The P1 connector provides access to digital signals, ground, and IO power.
The P2 connector provides access to ground and 5V power.
The following figure shows the expansion header signals routing on the nRF7002 EBII.
Figure 1. Expansion header signals routing on the nRF7002 EBII
Note: The nRF7002 EBII runs at an IO
voltage range of 1.62 V to 3.6 V. Ensure that the base or motherboard has the correct voltage
level.