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ADE7953
Interrupt Enable and Interrupt Status Registers
Current Channel A and Voltage Channel Registers
Table 22. IRQENA Register (Address 0x22C and Address 0x32C)
Data Sheet
Bits
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Bit Name
AEHFA
VAREHFA
VAEHFA
AEOFA
VAREOFA
VAEOFA
AP_NOLOADA
VAR_NOLOADA
VA_NOLOADA
APSIGN_A
VARSIGN_A
ZXTO_IA
ZXIA
OIA
ZXTO
ZXV
OV
WSMP
CYCEND
Sag
Reset
CRC
Description
Set to 1 to enable an interrupt when the active energy is half full (Current Channel A)
Set to 1 to enable an interrupt when the reactive energy is half full (Current Channel A)
Set to 1 to enable an interrupt when the apparent energy is half full (Current Channel A)
Set to 1 to enable an interrupt when the active energy has overflowed or underflowed (Current Channel A)
Set to 1 to enable an interrupt when the reactive energy has overflowed or underflowed (Current Channel A)
Set to 1 to enable an interrupt when the apparent energy has overflowed or underflowed (Current Channel A)
Set to 1 to enable an interrupt when the active power no-load condition is detected on Current Channel A
Set to 1 to enable an interrupt when the reactive power no-load condition is detected on Current Channel A
Set to 1 to enable an interrupt when the apparent power no-load condition is detected on Current Channel A
Set to 1 to enable an interrupt when the sign of active energy has changed (Current Channel A)
Set to 1 to enable an interrupt when the sign of reactive energy has changed (Current Channel A)
Set to 1 to enable an interrupt when the zero crossing has been missing on Current Channel A for the length of
time specified in the ZXTOUT register
Set to 1 to enable an interrupt when the current Channel A zero crossing occurs
Set to 1 to enable an interrupt when the current Channel A peak has exceeded the overcurrent threshold set in the
OILVL register
Set to 1 to enable an interrupt when a zero crossing has been missing on the voltage channel for the length of
time specified in the ZXTOUT register
Set to 1 to enable an interrupt when the voltage channel zero crossing occurs
Set to 1 to enable an interrupt when the voltage peak has exceeded the overvoltage threshold set in the OVLVL
register
Set to 1 to enable an interrupt when new waveform data is acquired
Set to 1 to enable an interrupt when it is the end of a line cycle accumulation period
Set to 1 to enable an interrupt when a sag event has occurred
This interrupt is always enabled and cannot be disabled
Set to 1 to enable an interrupt when the checksum has changed
Table 23. IRQSTATA Register (Address 0x22D and Address 0x32D) and RSTIRQSTATA Register (Address 0x22E and
Address 0x32E)
Bits
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Bit Name
AEHFA
VAREHFA
VAEHFA
AEOFA
VAREOFA
VAEOFA
AP_NOLOADA
VAR_NOLOADA
VA_NOLOADA
APSIGN_A
VARSIGN_A
ZXTO_IA
ZXIA
OIA
ZXTO
ZXV
OV
Description
Set to 1 when the active energy register is half full (Current Channel A)
Set to 1 when the reactive energy register is half full (Current Channel A)
Set to 1 when the apparent energy register is half full (Current Channel A)
Set to 1 when the active energy register has overflowed or underflowed (Current Channel A)
Set to 1 when the reactive energy register has overflowed or underflowed (Current Channel A)
Set to 1 when the apparent energy register has overflowed or underflowed (Current Channel A)
Set to 1 when the active power no-load condition is detected Current Channel A
Set to 1 when the reactive power no-load condition is detected Current Channel A
Set to 1 when the apparent power no-load condition is detected Current Channel A
Set to 1 when the sign of active energy has changed (Current Channel A)
Set to 1 when the sign of reactive energy has changed (Current Channel A)
Set to 1 when a zero crossing has been missing on Current Channel A for the length of time specified in the
ZXTOUT register
Set to 1 when a current Channel A zero crossing is detected
Set to 1 when the current Channel A peak has exceeded the overcurrent threshold set in the OILVL register
Set to 1 when a zero crossing has been missing on the voltage channel for the length of time specified in the
ZXTOUT register
Set to 1 when the voltage channel zero crossing is detected
Set to 1 when the voltage peak has exceeded the overvoltage threshold set in the OVLVL register
Rev. B | Page 66 of 72
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