VREQCTRL — Voltage request control
The VREQCTRL can request additional voltage on the VREGRADIO regulated supply to support +3 dBm TX power on RADIO.
Setting the VREGRADIO.VREQH register will request high voltage. The request is active until the register is cleared. Status register VREGRADIO.VREQHREADY indicates when the regulator has changed to high voltage.
Registers
Instances
| Instance | Domain | Base address | TrustZone | Split access | Description | ||
|---|---|---|---|---|---|---|---|
| Map | Att | DMA | |||||
| VREQCTRL | NETWORK | 0x41004000 | HF | NS | NA | No | Voltage request control |
Register overview
| Register | Offset | TZ | Description |
|---|---|---|---|
| VREGRADIO.VREQH | 0x500 | Request high voltage on RADIO After requesting high voltage, the user must wait until VREQHREADY is set to Ready This register is retained. | |
| VREGRADIO.VREQHREADY | 0x508 | High voltage on RADIO is ready |
VREGRADIO.VREQH (Retained)
Address offset: 0x500
Request high voltage on RADIO
After requesting high voltage, the user must wait until VREQHREADY is set to Ready
This register is retained.
| Bit number | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | A | ||||||||||||||||||||||||||||||||||
| Reset 0x00000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| ID | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A | RW | VREQH | Request high voltage | ||||||||||||||||||||||||||||||||
Disabled | 0 | Disable | |||||||||||||||||||||||||||||||||
Enabled | 1 | Enable | |||||||||||||||||||||||||||||||||
VREGRADIO.VREQHREADY
Address offset: 0x508
High voltage on RADIO is ready
| Bit number | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | A | ||||||||||||||||||||||||||||||||||
| Reset 0x00000000 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| ID | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A | R | READY | RADIO is ready to operate on high voltage | ||||||||||||||||||||||||||||||||
NotReady | 0 | Not ready | |||||||||||||||||||||||||||||||||
Ready | 1 | Ready | |||||||||||||||||||||||||||||||||
Electrical specification
VREQCTRL electrical specifications
| Symbol | Description | Min. | Typ. | Max. | Units |
|---|---|---|---|---|---|
| tVREQH,VREQREADY | Time from VREQH requested until VREQREADY. | 12 | µs |