Reference Manual ADuCM356
REGISTER DETAILS: ADC CIRCUIT
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Table 72. Bit Descriptions for DFTCON (Continued)
Bits Bit Name Settings Description Reset Access
100 DFT point number is 64. DFT uses 64 ADC samples.
101 DFT point number is 128. DFT uses 128 ADC samples.
110 DFT point number is 256. DFT uses 256 ADC samples.
111 DFT point number is 512. DFT uses 512 ADC samples.
1000 DFT point number is 1024. DFT uses 1024 ADC samples.
1001 DFT point number is 2048. DFT uses 2048 ADC samples.
1010 DFT point number is 4096. DFT uses 4096 ADC samples.
1011 DFT point number is 8192. DFT uses 8192 ADC samples.
1100 DFT point number is 16384. DFT uses 16,384 ADC samples.
[3:1] Reserved Reserved. 0x0 R
0 HANNINGEN Hanning Window Enable. 0x0 R/W
0 Disable Hanning window.
1 Enable Hanning window.
TEMPERATURE SENSOR 0 CONFIGURATION REGISTER
Address: 0x400C2174, Reset: 0x00000000, Name: TEMPCON0
Table 73. Bit Descriptions for TEMPCON0
Bits Bit Name Settings Description Reset Access
[31:4] Reserved Reserved. 0x0 R
[3:2] CHOPFRESEL Chop Mode Frequency Setting. Sets frequency of chop mode switching. 0x0 R/W
11 Chop switch frequency is 200 kHz.
10 Chop switch frequency is 100 kHz.
00 Chop switch frequency is 6.25 kHz.
01 Chop switch frequency is 25 kHz.
1 CHOPCON Temperature Sensor Chop Mode. Temperature sensor channel chop control signal. 0x0 R/W
0 Disable chop.
1 Enable chop. If chopping is enabled, take two consecutive samples and average the results to obtain
a final temperature sensor channel reading. Chopping helps to reduce the offset error associated with
this channel.
0 Reserved Reserved. 0x0 R/W
HIGH-POWER AND LOW-POWER BUFFER CONTROL REGISTER
Address: 0x400C2180, Reset: 0x00000037, Name: BUFSENCON
Table 74. Bit Descriptions for BUFSENCON
Bits Bit Name Settings Description Reset Access
[31:9] Reserved Reserved. 0x0 R
8 V1P8THERMSTEN Buffered Reference Output. Buffered output to the AIN3/BUF_VREF1V8 pin. 0x0 R/W
0 Disable 1.8 V buffered reference output.
1 Enable 1.8 V buffered reference output.
7 Reserved Reserved. 0x0 R
6 V1P1LPADCCHGDIS Controls Decoupling Capacitor Discharge Switch. This switch connects the 1.1 V internal
reference for ADC common-mode voltage to an internal discharging circuit. Ensure that the
switch is open for normal operation to maintain the reference voltage on the external 1.1 V
decoupling capacitor.
0x0 R/W
0 Open Switch. Recommended value. Leave the switch open to maintain the charge on
external decoupling capacitor for the 1.1 V reference.
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