26.3.1 FVRCON

Fixed Voltage Reference Control Register

Note:

Fixed Voltage Reference output cannot exceed V_DD.
FVRRDY is always ‘1’.

Name:	FVRCON
Address:	0x90C


Bit	7	6	5	4	3	2	1	0
	FVREN	FVRRDY					ADFVR[1:0]
Access	R/W	R					R/W	R/W
Reset	0	0					0	0

Bit 7 – FVREN Fixed Voltage Reference Enable bit

Value	Description
1	Fixed Voltage Reference is enabled
0	Fixed Voltage Reference is disabled

Bit 6 – FVRRDY Fixed Voltage Reference Ready Flag bit ⁽²⁾

Value	Description
1	Fixed Voltage Reference output is ready for use
0	Fixed Voltage Reference output is not ready or not enabled

Bits 1:0 – ADFVR[1:0] ADC FVR Buffer Gain Selection bit

Value	Description
11	ADC FVR Buffer Gain is 4x, (4.096V)⁽¹⁾
10	ADC FVR Buffer Gain is 2x, (2.048V)⁽¹⁾
01	ADC FVR Buffer Gain is 1x, (1.024V)
00	ADC FVR Buffer is off

Fixed Voltage Reference output cannot exceed VDD. FVRRDY is always ‘1’.

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