CS5464-IS View Datasheet(PDF) - Cirrus Logic
Part Name
Description
MFG CO.
CS5464-IS Datasheet PDF : 46 Pages
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CS5464
6.1.7 Status (Status) and Mask (Mask) Register
Address: 15 (Status); 26 (Mask)
23
DRDY
15
E2OR
7
TUP
22
I2OR
14
IROR
6
V2OD
21
V2OR
13
VROR
5
I2OD
20
CRDY
12
EOR
4
VOD
19
I2ROR
11
IFAULT
3
IOD
18
V2ROR
10
VSAG
2
LSD
17
IOR
9
I2FAULT
1
FUP
16
VOR
8
V2SAG
0
IC
Default = 0x800001 (Status Register), 0x000000 (Mask Register)
The Status Register indicates status within the chip. In normal operation, writing a '1' to a bit will cause the bit
to reset. Writing a '0' to a bit will not change it’s current state.
The Mask Register is used to control the activation of the INT pin. Placing a logic '1' in a Mask bit will allow the
corresponding bit in the Status Register to activate the INT pin when the status bit is asserted.
DRDY
Data Ready. During conversions, this bit will indicate the end of computation cycles. For cal-
ibrations, this bit indicates the end of a calibration sequence.
IOR (I2OR)
Current Out of Range. Set when the magnitude of the measured current value causes the I
(I2) register to overflow.
VOR (V2OR)
Voltage Out of Range. Set when the magnitude of the measured voltage value causes the
V (V2) register to overflow.
CRDY
Conversion Ready. Indicates a new conversion is ready. This will occur at the output word
rate.
IROR (I2ROR)
RMS Current Out of Range. Set when the calculated RMS current value causes the IRMS
(I2RMS) register to overflow.
VROR (V2ROR) RMS Voltage Out of Range. Set when the calculated RMS voltage value causes the VRMS
(V2RMS) register to overflow.
EOR (E2OR)
Energy Out of Range. Set when PActive (P2Active) overflows.
IFAULT (I2FAULT) Indicates a current fault occurred in the power line current. If the absolute value of the in-
stantaneous current is less than ISAGlevel (I2SAGlevel) for more than half of the ISAGduration
(I2SAGduration), the IFAULT (I2FAULT) bit will be set.
VSAG (V2SAG)
Indicates a voltage sag occurred in the power line voltage. If the absolute value of the in-
stantaneous voltage is less than VSAGlevel (V2SAGlevel) for more than half of the VSAGduration
(V2SAGduration), the VSAG (V2SAG) bit will be set.
TUP
Temperature Updated. Indicates a temperature conversion is ready.
VOD (V2OD)
Modulator Oscillation Detected on the voltage (voltage 2) channel. Set when the modulator
oscillates due to an input above full scale. The level at which the modulator oscillates is sig-
nificantly higher than the voltage (voltage 2) channel’s differential input voltage range.
IOD (I2OD)
Modulator Oscillation Detected on the current (current 2) channel. Set when the modulator
oscillates due to an input above full scale. The level at which the modulator oscillates is sig-
nificantly higher than the current (current 2) channel’s differential input voltage range.
Note: The IOD (I2OD) and VOD (V2OD) bits may be ‘falsely’ triggered by very brief voltage
30
DS682PP1
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