Reference Manual ADuCM356
REGISTER DETAILS: ADC CIRCUIT
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Table 63. Bit Descriptions for ADCCON (Continued)
Bits Bit Name Settings Description Reset Access
01000 AVDD/2.
01001 DVDD/2.
01010 AVDD_REG/2.
01011 Temperature Sensor 0 positive input.
01100 ADCVBIAS_CAP.
01101 DE0.
01110 SE0.
01111 SE1.
010000 VREF_2.5V/2. Low power 2.5 V reference divided by 2.
010001 Reserved.
010010 VREF_1.82V. ADC and high-speed DAC 1.82 V voltage channel.
010011 Temperature Sensor 0 negative input.
010100 AIN4_LPF0.
010101 AIN5.
010110 AIN6.
010111 VZERO0.
011000 VBIAS0.
011001 CE0 pin voltage.
011010 RE0 pin voltage.
011011 VZERO1.
011100 VBIAS1.
011101 CE1 pin voltage.
011110 RE1 pin voltage.
011111 CE0 pin divided by 2 voltage.
100000 CE1 pin divided by 2 voltage.
100001 LPTIA0 output before the low-pass filter.
100010 LPTIA1 output before the low-pass filter.
100011 Reserved.
100100 P node of excitation amplifier.
100101 Temperature Sensor 1 positive input.
100110 Test signal.
ADC OUTPUT FILTERS CONFIGURATION REGISTER
Address: 0x400C2044, Reset: 0x00000301, Name: ADCFILTERCON
Table 64. Bit Descriptions for ADCFILTERCON
Bits Bit Name Settings Description Reset Access
[31:16] Reserved Reserved. 0x0 R
[15:14] AVRGNUM These bits set the number of samples used by the averaging function. The average output
is fed directly to the DFT block and the DFT source is automatically changed to the average
output. Set the AVRGEN bit to 1 to use these bits.
0x0 R/W
0 2 ADC samples used for the average function.
1 4 ADC samples used for the average function.
10 8 ADC samples used for the average function.
11 16 ADC samples used for the average function.
[13:12] SINC3OSR Sinc3 Filter Oversampling Rate. 0x0 R/W
0 Oversampling rate of 5. Use for 160 kHz sinc3 filter output update rate. Use when ADC update
rate is 800 kSPS (default).
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