FVRCON

FVR Control Register
Important: This register is shared between the Fixed Voltage Reference (FVR) module and the Temperature Indicator module.
Note:
  1. 1.This output goes to the DAC and comparator modules, and to the ADC module as an input channel only.
  2. 2.This output goes to the ADC module as a reference and an input channel.
  3. 3.Fixed Voltage Reference output cannot exceed VDD.
Name:
FVRCON
Address:
0x3D7
Reset:
Access:
Bit76543210
ENRDYTSENTSRNGCDAFVR[1:0]ADFVR[1:0]
AccessR/WRR/WR/WR/WR/WR/WR/W
Reset0q000000

Bit 7 – EN: Fixed Voltage Reference Enable

Fixed Voltage Reference Enable

ValueDescription
1 Enables module
0 Disables module

Bit 6 – RDY: Fixed Voltage Reference Ready Flag

Fixed Voltage Reference Ready Flag

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

Bit 5 – TSEN: Temperature Indicator Enable

Temperature Indicator Enable

ValueDescription
1 Temperature Indicator is enabled
0 Temperature Indicator is disabled

Bit 4 – TSRNG: Temperature Indicator Range Selection

Temperature Indicator Range Selection

ValueDescription
1 VOUT = 3VT (High Range)
0 VOUT = 2VT (Low Range)

Bits 3:2 – CDAFVR[1:0]: FVR Buffer 2 Gain Selection(1)

FVR Buffer 2 Gain Selection(1)

ValueDescription
11 FVR Buffer 2 Gain is 4x, (4.096V)(3)
10 FVR Buffer 2 Gain is 2x, (2.048V)(3)
01 FVR Buffer 2 Gain is 1x, (1.024V)
00 FVR Buffer 2 is OFF

Bits 1:0 – ADFVR[1:0]: FVR Buffer 1 Gain Selection(2)

FVR Buffer 1 Gain Selection(2)

ValueDescription
11 FVR Buffer 1 Gain is 4x, (4.096V)(3)
10 FVR Buffer 1 Gain is 2x, (2.048V)(3)
01 FVR Buffer 1 Gain is 1x, (1.024V)
00 FVR Buffer 1 is OFF