30.4.1 FVRCON

Fixed Voltage Reference Control Register
Note:
  1. Fixed Voltage Reference output cannot exceed VDD.
  2. See the “Temperature Indicator Module” section for additional information.
  3. FVRRDY is always ‘1’.
Name: FVRCON
Offset: 0x90C

Bit 76543210 
 FVRENFVRRDYTSENTSRNGCDAFVR[1:0]ADFVR[1:0] 
Access R/WRR/WR/WR/WR/WR/WR/W 
Reset 00000000 

Bit 7 – FVREN Fixed Voltage Reference Enable bit

ValueDescription
1

Fixed Voltage Reference is enabled
0

Fixed Voltage Reference is disabled

Bit 6 – FVRRDY Fixed Voltage Reference Ready Flag bit (3)

ValueDescription
1

Fixed Voltage Reference output is ready for use
0

Fixed Voltage Reference output is not ready or not enabled

Bit 5 – TSEN  Temperature Indicator Enable bit(2)

ValueDescription
1

Temperature Indicator is enabled
0

Temperature Indicator is disabled

Bit 4 – TSRNG Temperature Indicator Range Selection bit(2)

ValueDescription
1

VOUT = VDD - 4 VT (High Range)
0

VOUT = VDD - 2 VT (Low Range)

Bits 3:2 – CDAFVR[1:0] Comparator FVR Buffer Gain Selection bits

ValueDescription
11

Comparator FVR Buffer Gain is 4x, (4.096V)(1)
10

Comparator FVR Buffer Gain is 2x, (2.048V)(1)
01

Comparator FVR Buffer Gain is 1x, (1.024V)
00

Comparator FVR Buffer is off

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

ValueDescription
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. See the “Temperature Indicator Module” section for additional information. FVRRDY is always ‘1’.