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

Table 1. Instances
Base address	Domain	Peripheral	Instance	Secure mapping	DMA security	Description	Configuration
0x41004000	NETWORK	VREQCTRL	VREQCTRL	NS	NA	Voltage request control

Table 2. Register overview
Register	Offset	Security	Description
VREGRADIO.VREQH	0x500		Request high voltage on RADIO After requesting high voltage, the user must wait until VREQHREADY is set to Ready	Retained
VREGRADIO.VREQHREADY	0x508		High voltage on RADIO is ready

VREGRADIO.VREQH (Retained)

Address offset: 0x500

This register is a retained register

Request high voltage on RADIO

After requesting high voltage, the user must wait until VREQHREADY is set to 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	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
t_{VREQH,VREQREADY}	Time from VREQH requested until VREQREADY.					12		µs