71M6521FE-IMR/F Maxim Integrated Products, 71M6521FE-IMR/F Datasheet - Page 85

• Manufacturer Part Number: 71M6521FE-IMR/F
• Description: IC ENERGY METER 32K FLASH 68-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521FE-IMR/F

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

71M6521DE/DH/FE Data Sheet
CE TRANSFER VARIABLES
When the MPU receives the XFER_BUSY interrupt, it knows that fresh data is available in the transfer variables. The
transfer variables can be categorized as:
Rev 2
CECONFIG
[15:8]
[bit]
[7]
[6]
[5]
[4]
[3]
[2]
[1]
[0]
1.
2.
3.
4.
5.
6.
Fundamental energy measurement variables
Instantaneous (RMS) values
Other measurement parameters
Pulse generation variables
Current shunt variables
Calibration parameters
PULSE_SLOW
PULSE_FAST
EXT_PULSE
IB_SHUNT
IA_SHUNT
SAG_CNT
FREQSEL
Name
--
--
Default
(0x50)
80
0
0
0
1
0
0
0
0
Description
Number of consecutive voltage samples below SAG_THR before a sag
alarm is declared. The maximum value is 255. SAG_THR is at address
0x14.
Unused
Selected phase for frequency monitor (0 = A, 1 = B).
When zero, causes the pulse generators to respond to WSUM_X and
VARSUM_X. Otherwise, the generators respond to values the MPU places
in APULSEW and APULSER.
Unused
When 1, the current gain of channel B is increased by 8. The gain factor
controlled by In_SHUNT is referred to as In_8 throughout this document.
When 1, the current gain of channel A is increased by 8.
When PULSE_SLOW = 1, the pulse generator input is reduced by a factor of
64. When PULSE_FAST = 1, the pulse generator input is increased 16x.
These two parameters control the pulse gain factor X (see table below).
Allowed values are either 1 or 0. Default is 0 (X = 6).
1.5 * 2
1.5 * 2
1.5 * 2
-4
1.5
= 0.09375
X
6
2
= 96
= 6
PULSE_SLOW
0
0
1
1
PULSE_FAST
0
1
0
1
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