71M6533G Maxim, 71M6533G Datasheet - Page 102

• Manufacturer Part Number: 71M6533G
• Description: The Teridian™ 71M6533 and 71M6534 are third-generation polyphase metering systems-on-chips (SoCs) with a 10MHz 8051-compatible MPU core, low-power RTC, flash, and LCD driver
• Manufacturer: Maxim

5.3.9 Temperature Measurement and Temperature Compensation
Table 63
5.3.10 Pulse Generation
Table 64
The combination of the PULSE_SLOW and PULSE_FAST parameters (see
the pulse rate. The default values of 0 and 0 will maintain the original pulse rate given by the Kh equation.
WRATE controls the number of pulses that are generated per measured Wh and VARh quantities. The
lower WRATE is, the slower the pulse rate for measured energy quantity. The metering constant Kh is
derived from WRATE as the amount of energy measured for each pulse. That is, if Kh = 1Wh/pulse, a
power applied to the meter of 120 V and 30 A results in one pulse per second. If the load is 240 V at
150 A, ten pulses per second will be generated.
102
Address
Address
0x82
0x97
0x98
0x83
0x84
CE
0x9D
0x1F
0x3A
0x3B
0x81
0x39
CE
describes the CE registers supporting temperature measurement and temperature compensation.
describes the CE pulse generation parameters.
TEMP_NOM
TEMP_RAW
DEGSCALE
TEMP_X
MAINEDGE_X
VBAT_SUM_X
PPMC2
Name
PPMC
PH_AtoC_X
PH_AtoB_X
FREQ_X
Name
Default
21755
N/A
N/A
Table 63: CE Temperature Registers
Table 62: Other Transfer Variables
0
0
0
Description
Fundamental frequency: LSB
Voltage phase lag. The selection of the reference phase is based
on FREQSEL1 and FREQSEL0 in the CECONFIG register:
If FREQSEL1/FREQSEL0 select phase A: Phase lag from A to B.
If FREQSEL1/FREQSEL0 select phase B: Phase lag from B to C.
If FREQSEL1/FREQSEL0 select phase C: Phase lag from C to A.
The angle in degrees is (0 to 360): PH_AtoB_X * 360/N
If FREQSEL1/FREQSEL0 select phase A: Phase lag from A to C.
If FREQSEL1/FREQSEL0 select phase B: Phase lag from B to A.
If FREQSEL1/FREQSEL0 select phase C: Phase lag from C to B.
Angle in degrees is (0 to 360): PH_AtoC_X * 360/N
The number of edge crossings of the selected voltage in the
previous accumulation interval. Edge crossings are either
direction and are debounced.
The output of the battery measurement. This value is
equivalent to twice the measured ADC value.
The filtered, unscaled reading from the temperature sensor.
This register contains the difference between the die temperature
and the reference/calibration temperature as established in the
TEMP_NOM register, measured in 0.1°C.
Scale factor for the temperature calculation. It is not necessary
to use values other than the default value.
This register holds the reference or calibration temperature
vale. At calibration time, the value read in TEMP_RAW must be
written to TEMP_NOM.
Linear temperature correction factor.
Quadratic temperature correction factor.
Description
≡
2
Table 58)
F
32
S
≈
. 0
587
controls the speed of
⋅
10
ACC
−
6
+ 4.8
Hz
ACC
+ 2.4
Rev 2