7 pulse output width (pulsewidth) – address: 14, 8 pulse output rate (pulserate) – address: 15, 9 cycle count (n) – address: 19 – Cirrus Logic CS5467 User Manual
Page 36: 10 wideband reactive power (q1wb , q2wb ), Cs5467, 6 line to sample frequency ratio (epsilon), Address: 17, 7 pulse output width (pulsewidth), Address: 14, 8 pulse output rate (pulserate)
CS5467
36
DS714F3
8.3.6 Line to Sample Frequency Ratio (Epsilon)
–
Address: 17
Default = 0.0125 (4.0 kHz x 0.0125 or 50 Hz)
Epsilon
is the ratio of the input line frequency to the output word rate (OWR). It can either be written by the ap-
plication program or calculated automatically from the line frequency (from the voltage input) using the AFC bit
in the Modes register. It is a two's complement value in the range of -1.0
value 1.0, with the binary point to
the right of the MSB. Negative values are not used.
8.3.7 Pulse Output Width (PulseWidth)
–
Address: 14
Default = 1 (250 uS at OWR = 4 kHz)
PulseWidth
sets the duration of energy pulses. The actual pulse duration is the contents of PulseWidth divided
by the output word rate (OWR). PulseWidth is an integer in the range of 1 to 8,388,607.
8.3.8 Pulse Output Rate (PulseRate)
–
Address: 15
Default= -1
PulseRate
sets the full-scale frequency for E1, E2, E3 pulse outputs. For a 4 kHz sample rate, the maximum
pulse rate is 2 kHz. This is a two's complement value in the range of -1
value 1, with the binary point to the
left of the MSB.
Refer to
on page 21 for more information.
8.3.9 Cycle Count (N)
–
Address: 19
Default = 4000
Determines the number of output word rate (OWR) samples to use in calculating low-rate results. Cycle Count
(N) is an integer in the range of 10 to 8,388,607. Values less than 10 should not be used.
8.3.10 Wideband Reactive Power (Q1
WB
, Q2
WB
)
Address: 20 (Q1
WB
), 21 (Q2
WB
)
Wideband reactive power is calculated using vector subtraction. (See
Section 4.8 Power and Energy Results
on page 16). The value is signed, but has a range of 0
value 1.0. The binary point is to the right of the MSB.
MSB
LSB
-(2
0
)
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
MSB
LSB
0
2
22
2
21
2
20
2
19
2
18
2
17
2
16
.....
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSB
LSB
-(2
0
)
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23
MSB
LSB
0
2
22
2
21
2
20
2
19
2
18
2
17
2
16
.....
2
6
2
5
2
4
2
3
2
2
2
1
2
0
MSB
LSB
-(2
0
)
2
-1
2
-2
2
-3
2
-4
2
-5
2
-6
2
-7
.....
2
-17
2
-18
2
-19
2
-20
2
-21
2
-22
2
-23