ade7753 Analog Devices, Inc., ade7753 Datasheet - Page 34

• Manufacturer Part Number: ade7753
• Description: Active And Apparent Energy Metering Ic With Di/dt Sensor Interface
• Manufacturer: Analog Devices, Inc.

ADE7753
Interrupt Status Register (0BH) / Reset Interrupt Status Register (0CH) /Interrupt Enable Register (0Ah)
The Status Register is used by the MCU to determine the source of an interrupt request (IRQ). When an interrupt event occurs
in the ADE7753, the corresponding flag in the Interrupt Status register is set logic high. If the enable bit for this flag is logic
one in the Interrupt Enable register, the IRQ logic output goes active low. When the MCU services the interrupt it must first
carry out a read from the Interrupt Status Register to determine the source of the interrupt.
Bit
Location
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
Ah
Bh
C h
D h
E h
F h
Table VII: Interrupt Status Register, Reset Interrupt Status Register & Interrupt Enable Register
Interrupt
Flag
A E H F
SAG
C Y C E N D
WSMP
Z X
T E M P
R E S E T
A E O F
PKV
PKI
VAEHF
VAEOF
Z X T O
P P O S
P N E G
RESERVED
PRELIMINARY TECHNICAL DATA
Description
Indicates that an interrupt was caused by the 0 to 1 transition of the MSB of the Active
Energy register (i.e. the AENERGY register is half full)
Indicates that an interrupt was caused by a SAG on the line voltage or no zero crossings were
detected.
Indicates the end of energy accumulation over an integer number of half line cycles as
defined by the content of the LINECYC Register—see Line Cycle Energy Accumulation Mode
Indicates that new data is present in the Waveform Register.
This status bit reflects the status of the ZX logic ouput—see Zero Crossing Detection
Indicates that a temperature conversion result is available in the Temperature Register.
Indicates the end of a reset (for both software or hardware reset). The corresponding
enable bit has no function in the Interrupt Enable Register, i.e. this status bit is set at
the end of a reset, but it cannot be enabled to cause an interrupt.
Indicates that the Active Energy register has overflowed.
Indicates that waveform sample from Channel2 has exceeded the VPKLVL value.
Indicates that waveform sample from Channel1 has exceeded the IPKLVL value.
Indicates that an interrupt was caused by the 0 to 1 transition of the MSB of the Apparent
Energy register (i.e. the VAENERGY register is half full)
Indicates that the Apparent Enrgy register has overflowed.
Indicates that an interrupt was caused by a missing zero crossing on the line voltage for the
specified number of line cycles—see Zero Crossing Time Out
Indicates that the power has gone from negative to positive.
Indicates that the power has gone from positive to negative.
Reserved
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REV. PrF 10/02