cs5461 Cirrus Logic, Inc., cs5461 Datasheet - Page 35

• Manufacturer Part Number: cs5461
• Description: Single-phase, Bidirectional Power/energy Ic
• Manufacturer: Cirrus Logic, Inc.

7.5 PulseRateE Register
7.6 I, V, P, & P
Output Register
7.7 I
7.8 Timebase Calibration Register
DS546F2
MSB
MSB
MSB
MSB
-(2
2
2
2
18
-1
0
0
Default** = 1.000
This register can be set with a clock frequency error compensation value, to correct for a gain/timing error
caused by the crystal/oscillator tolerance. The value is in the range 0.0 ≤ TBC < 2.0.
Address: 6
Default** = 32000.00 Hz
The PulseRateE Register determines the average frequency of the pulses issued on the EOUT output pin. The
register’s smallest valid value is 2
in a pulse rate setting of MCLK/K/8.
Address: 7 - 10
These signed registers contain the last measured value of I, V, P, and P
range of -1.0 ≤ I,V,P,P
place to the right of the MSB (MSB has a negative weighting). These values are 22 bits in length. The two least
significant bits have no meaning, and will always have a value of “0”.
Address: 11,12
These unsigned registers contain the last values of I
0.0 ≤ I
left of the MSB. These results are updated after each computation cycle.
Address: 13
)
RMS
2
2
2
2
17
-1
-2
RMS
-1
, V
RMS
,V
2
2
2
2
RMS
16
-2
-3
-2
Avg
Unsigned Output Register
: Instantaneous Current, Voltage, Power, and Average Power (Signed)
< 1.0. The value is represented in (unsigned) binary notation, with the binary point place to the
2
2
2
2
15
-3
-4
-3
Avg
< 1.0. The value is represented in two's complement notation, with the binary point
2
2
2
2
14
-4
-5
-4
2
-4
2
2
2
13
-5
-6
-5
but can be in 2
2
2
2
2
12
-6
-7
-6
2
2
2
2
11
-7
-8
-7
-5
RMS
increments. A pulserate higher than MCLK/K/8 will result
.....
.....
.....
.....
and V
2
2
2
2
RMS
-17
-18
-17
1
. The results are in the range of
2
2
2
2
-18
-19
-18
0
AVG
. The results will be within in the
2
2
2
2
-19
-20
-19
-1
2
2
2
2
-20
-21
-20
-2
2
2
2
2
-21
-22
-21
-3
CS5461
2
2
2
2
-22
-23
-22
-4
LSB
LSB
LSB
LSB
2
2
2
2
-23
-24
-23
-5
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