| # Copyright (c) 2020 Nordic Semiconductor ASA |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| |
| description: | |
| This is a representation of the nRF21540 Radio Front-End module |
| compatible: "nordic,nrf21540-fem" |
| |
| include: base.yaml |
| |
| properties: |
| tx-en-gpios: |
| type: phandle-array |
| required: false |
| description: | |
| GPIO of the SOC controlling TX_EN pin of the nRF21540 |
| rx-en-gpios: |
| type: phandle-array |
| required: false |
| description: | |
| GPIO of the SOC controlling RX_EN pin of the nRF21540 |
| pdn-gpios: |
| type: phandle-array |
| required: false |
| description: | |
| GPIO of the SOC controlling PDN pin of the nRF21540 |
| ant-sel-gpios: |
| type: phandle-array |
| required: false |
| description: | |
| GPIO of the SOC controlling ANT-SEL pin of the nRF21540 |
| mode-gpios: |
| type: phandle-array |
| required: false |
| description: | |
| GPIO of the SOC controlling MODE pin of the nRF21540 |
| spi-if: |
| type: phandle |
| required: false |
| description: | |
| Reference to the nordic,nrf21540-fem-spi SPI bus interface. |
| |
| This must be present to support SPI control of the FEM. |
| tx-en-settle-time-us: |
| type: int |
| default: 11 |
| description: | |
| Settling time in microseconds from state PG to TX. |
| |
| Default value is based on Table 6 of the nRF21540 Product |
| Specification (v1.0), and can be overridden for tuned |
| configurations. |
| rx-en-settle-time-us: |
| type: int |
| default: 11 |
| description: | |
| Settling time in microseconds from state PG to RX. |
| |
| Default value is based on Table 6 of the nRF21540 Product |
| Specification (v1.0), and can be overridden for tuned |
| configurations. |
| pdn-settle-time-us: |
| type: int |
| default: 18 |
| description: | |
| Settling time in microseconds from state PD to PG. |
| |
| Default value is based on Table 6 of the nRF21540 Product |
| Specification (v1.0), and can be overridden for tuned |
| configurations. |
| trx-hold-time-us: |
| type: int |
| default: 3 |
| description: | |
| Power-off time in microseconds when changing from RX or TX to PG. |
| |
| Default value is based on Table 6 of the nRF21540 Product |
| Specification (v1.0), and can be overridden for tuned |
| configurations. |