Datasheet

71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
SEPTEMBER 2011
© 2005-2011 Teridian Semiconductor Corporation Page: 75 of 104
A Maxim Integrated Products Brand
CE
Address
Name Default Description
0x28
PULSE_SLOW
1
When PULSE_SLOW > 0, the pulse generator input is reduced 64x.
When PULSE_FAST > 0, 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 –1.
X
PULSE_SLOW
PULSE_FAST
1.5 * 2
2
= 6 -1 -1
1.5 * 2
6
= 96 -1 1
1.5 * 2
-4
= 0.09375 1 -1
1.5 1 (default) 1 (default)
0x29 PULSE_FAST 1
0x2D
WRATE
683
Kh =
VMAX
*
IMAX
*66.1782 / (
In_8
*WRATE*N
ACC
*X) Wh/pulse.
0x36
SUM_PRE
2520
PRE_SAMPS
*
SUM_CYCLES
(N
ACC
)
0x37 EXT_PULSE 15
Should be 15 or 0. 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.
0x3C PULSE_WIDTH 50
The maximum pulse width (low-going pulse) is:
(2 * PULSE_WIDTH + 1) * 66µs. 0 is a legitimate value.
0x26 APULSEW 0
Wh pulse generator input, to be updated by the MPU when using external pulse
generation (see DIO_PW bit). The output pulse rate is:
APULSEW * F
S
* 2
-32
* WRATE * 2
-14
This input is buffered and can be updated by the MPU during a computation
interval. The change will take effect at the beginning of the next interval.
0x27 APULSER 0
VARh pulse generator input, to be updated by the MPU when using external
pulse generation (see DIO_PV bit). The output pulse rate is:
APULSER * F
S
*2
-32
* WRATE * 2
-14
This input is buffered and can be updated by the MPU during a computation
interval. The change will take effect at the beginning of the next interval.