CS5464-IS(2007) 查看數據表（PDF） - Cirrus Logic
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CS5464-IS Datasheet PDF : 46 Pages
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CS5464
8.2.12 Internal Status (Status) and Interrupt Mask (Mask)
Address: 15 (Status); 26 (Mask)
23
DRDY
15
E2OR
7
TUP
22
I2OR
14
I1ROR
6
TOD
21
V2OR
13
V1ROR
5
I2OD
20
CRDY
12
E1OR
4
VOD
19
I2ROR
11
I1FAULT
3
I1OD
18
V2ROR
10
V1SAG
2
LSD
17
I1OR
9
I2FAULT
1
FUP
16
V1OR
8
V2SAG
0
IC
Default = 1 (Status), 0 (Mask)
The Status register indicates a variety of conditions within the chip. Writing a '1' to a Status register bit will clear
that bit if the condition that set it has been removed. Writing a '0' to any bit has no effect.
The Mask register is used to control the activation of the INT pin. Placing a logic '1' to a Mask register bit will
allow the corresponding Status register bit to activate the INT pin when set.
DRDY
Data Ready. During conversion, this bit indicates that low-rate results have been updated.
It indicates completion of other commands and the reset sequence.
I1OR (I2OR)
Current Out of Range. Set when the measured current would cause the I1 (I2) register to
overflow.
V1OR (V2OR)
Voltage Out of Range. Set when the measured voltage would cause the V1 (V2) register to
overflow.
CRDY
Conversion Ready. Indicates that sample rate (output word rate) results have been updat-
ed.
I1ROR (I2ROR) RMS Current Out of Range. Set when RMS current would cause the I1RMS (I2RMS) register
to overflow.
V1ROR (V2ROR) RMS Voltage Out of Range. Set when RMS voltage would cause the V1RMS (V2RMS) reg-
ister to overflow.
E1OR (E2OR)
Energy Out of Range. Set when average power would cause P1AVG (P2AVG) to overflow.
I1FAULT (I2FAULT)Indicates when a current fault condition has occurred.
V1SAG (V2SAG) Indicates when a voltage sag condition has occurred.
TUP
Indicates when the Temperature register (T) has been updated.
TOD
Modulator oscillation has been detected in the temperature A/D.
VOD
Modulator oscillation has been detected in the voltage A/D.
I1OD (I2OD)
Modulator oscillation has been detected in the current1 (current2) A/D.
LSD
Low Supply Detect. Set when the voltage on the PFMON pin falls below the specified low
level. LSD bit cannot be reset until the voltage rises above the specified high level.
FUP
Frequency Updated. Indicates the Epsilon register has been updated.
IC
Invalid Command. Normally logic 1. Set to 0 when an invalid command is received. It may
also indicate loss of serial command synchronization and the part may need to be re-initial-
ized.
DS682F1
31
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