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71M6543 Demo Board User’s Manual
Like i_max, except
for the 2nd current
sensor.
i_max2
4
Currents, Wh etc.
using currents from
the second sensor
are rescaled into the
same units as the
first current sensor.
0.1 Amps
208 A (2080)
)1C
signed
16
in_limit
3
Maximum valid neu-
tral current.
Same units as CE’s i3sqsum.
0.1A
)1D
signed
32
in_wait
3
The time that neu-
tral current can ex-
ceed n_max before
the neutral error is
asserted.
Count of accumulation intervals.
10 secs.
)1E
signed
16
Reserved
)1F
meter_id
8
Identification num-
ber of meter.
32 bit unsigned number. For
AMR demonstrations, this is
sent in decimal as the identifica-
tion number of the meter.
100000000
)20
signed
32
temp_datum
8
Count of tempera-
ture sensor at cali-
bration.
See data sheet. Temperature is
calculated as temp = (meas-
ured_temp –
temp_datum)/temp_cal1 +
temp_cal0
n/a
)21
signed
32
mtr_datum[0.
.3] 8
Center temperature
of a meter element’s
temperature curve.
0.1C
22C
)22..
25
signed
16
rtca_adj
8
Default value for
RTCA_ADJ, the
crystal’s capacitor
adjustment.
See data sheet. Set from hard-
ware value when hardware is
changed.
Hardware de-
fault (see data
sheet).
)26
unsigned
8
y_cal0 5, 8
RTC offset rate ad-
just
100ppb
0
)27
signed
16
v_bat_min
8
Minimum valid bat-
tery voltage.
Units of hardware’s battery
measurement register.
2V on a real
PCB; should be
adjusted for
battery and
chip.
)28
signed
32
cal_cnt
ver_hash
data_ok_cal
Count of calibra-
tions. In demo
code, it also checks
adjustments.
Checked to prevent
old calibration data
from being used by
new code. Value
that changes with
the banner text, and
therefore with the
version, date and
time.
Checks calibrations.
In demo code, it
also checks adjust-
ments.
Counts number of times calibra-
tion is saved, to a maximum of
255.
Uses data_ok() to calculate a
value from the string.
Checked by data_ok() of calibra-
tion value.
0
n/a
n/a
)29
)2A
)2B
unsigned
unsigned
unsigned
8
8
16
Reserved
Page: 28 of 91
)2C.
)2F
v5
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