MAXQ3183 Maxim, MAXQ3183 Datasheet - Page 96
MAXQ3183
Manufacturer Part Number
MAXQ3183
Description
The MAXQ3183 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load
Manufacturer
Maxim
Datasheet
1.MAXQ3183.pdf
(102 pages)
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Low-Power, Multifunction, Polyphase AFE
with Harmonics and Tamper Detect
This register contains the calculated 16-bit arithmetic checksum over critical configuration and calibration registers.
It is updated on every DSP cycle. In use, the administrative processor records the value in the CHKSUM register and
then checks it periodically to verify that no configuration or calibration registers have changed. The MAXQ3183 sets
the CHSCH bit when this register’s value changes.
The registers included in the checksum calculation include the following:
96
Bit:
Name:
Reset:
Bit:
Name:
Reset:
______________________________________________________________________________________
PLS1_WD
PLS2_WD
SYS_KHZ
VOLT_CC
PLSCFG1
PLSCFG2
AMP_CC
PWR_CC
ENR_CC
CYCNT
THR1
15
7
NOLOAD
B0FUND
R_ACFG
AVG_NS
REJ_NS
AVG_C
HPF_C
OCLVL
OVLVL
UVLVL
THR2
14
6
R_ADCRATE
R_ADCACQ
COM_TIMO
ACC_TIMO
TEMP_CC
13
ISUMLVL
R_SPICF
5
ZC_LPF
N.GAIN
I1THR
I2THR
Checksum High Byte
Checksum Low Byte
12
4
A.GAIN_LO
A.OFFS_LO
A.EF_GAIN
A.OFFS_HI
A.V_GAIN
A.E_GAIN
A.I_GAIN
A.PA0
A.PA1
A.PA2
11
3
Checksum (CHKSUM) (0x066)
B.GAIN_LO
B.OFFS_LO
B.EF_GAIN
B.OFFS_HI
B.V_GAIN
B.E_GAIN
10
B.I_GAIN
2
B.PA0
B.PA1
B.PA2
9
1
C.GAIN_LO
C.OFFS_LO
C.EF_GAIN
C.OFFS_HI
C.V_GAIN
C.E_GAIN
C.I_GAIN
C.PA0
C.PA1
C.PA2
8
0
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