AD5940
Data Sheet
ADC Maximum Hysteresis Value Register—ADCMAXSMEN
Address 0x000020B4, Reset: 0x00000000, Name: ADCMAXSMEN
Table 75. Bit Descriptions for ADCMAXSMEN Register
Bits
[31:16] Reserved
[15:0] MAXSWEN
Bit Name
Settings Description
Reset Access
Reserved.
0x0
0x0
R
ADCMAX hysteresis value. If a value greater than the value of the ADCMAX register is
R/W
measured by the ADC, the FLAG5 bit in INTCFLAG0 register or INTCFLAG1 register is set.
The FLAG5 bit remains set until the value of the ADCDAT register is less than the value
of ADCMAX, Bits[15:0] – ADCMAXSMEN, Bits[15:0].
ADC Delta Value Check Register—ADCDELTA
Address 0x000020B8, Reset: 0x00000000, Name: ADCDELTA
Table 76. Bit Descriptions for ADCDELTA Register
Bits
[31:16] Reserved
[15:0] DELTAVAL
Bit Name Settings Description
Reset Access
Reserved.
0x0
R
ADCDAT code differences limit option. If two consecutive ADCDAT register results have 0x0
a difference greater than ADCDELTA, Bits[15:0], an error flag is set via the FLAG6 bit of
the INTCFLAG0 register or INTCFLAG1 register.
R/W
ADC STATISTICS REGISTERS
Table 77. ADC Statistics Registers Summary
Address
Name
Description
Reset
Access
0x000021C0 STATSVAR
0x000021C4 STATSCON
Variance output register
Statistics controlmodule configuration register, including mean, variance, and outlier
detection blocks
0x00000000
0x00000000 R/W
R
0x000021C8 STATSMEAN Mean output register
0x00000000
R
Variance Output Register—STATSVAR
Address 0x000021C0, Reset: 0x00000000, Name: STATSVAR
Table 78. Bit Descriptions for STATSVAR
Bits
Bit Name
Settings
Description
Reset Access
31
Reserved
Reserved.
0x0
0x0
R
R
[30:0] Variance
Statistical variance value. This value indicates the spread from the mean value.
Statistics Control Register—STATSCON
Address 0x000021C4, Reset: 0x00000000, Name: STATSCON
Table 79. Bit Descriptions for STATSCON Register
Bits
Bit Name
Settings Description
Reset Access
[31:12] Reserved
Reserved.
0x0
0x0
0x0
R
[11:7]
[6:4]
STDDEV
Standard deviation configuration.
R/W
R/W
SAMPLENUM
Sample size. These bits set the number of ADC samples used for each statistic
calculation.
0
1
128 samples.
64 samples.
10 32 samples.
11 16 samples.
100 8 samples.
Reserved.
[3:1]
0
Reserved
STATSEN
0x0
0x0
R/W
R/W
Statistics enable.
0
1
Disable statistics.
Enable statistics.
Rev. 0 | Page 66 of 130
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