Datasheet

Data Sheet ADE7953

Rev. B | Page 67 of 72

Bits Bit Name Description

17 WSMP Set to 1 when new waveform data is acquired

18 CYCEND Set to 1 at the end of a line cycle accumulation period

19 Sag Set to 1 when a sag event has occurred

20 Reset Set to 1 at the end of a software or hardware reset

CRC

Set to 1 when the checksum has changed

Current Channel B Registers

Table 24. IRQENB Register (Address 0x22F and Address 0x32F)

Bits Bit Name Description

0 AEHFB Set to 1 to enable an interrupt when the active energy is half full (Current Channel B)

1 VAREHFB Set to 1 to enable an interrupt when the reactive energy is half full (Current Channel B)

2 VAEHFB Set to 1 to enable an interrupt when the apparent energy is half full (Current Channel B)

3 AEOFB Set to 1 to enable an interrupt when the active energy has overflowed or underflowed (Current Channel B)

4 VAREOFB Set to 1 to enable an interrupt when the reactive energy has overflowed or underflowed (Current Channel B)

5 VAEOFB Set to 1 to enable an interrupt when the apparent energy has overflowed or underflowed (Current Channel B)

AP_NOLOADB

Set to 1 to enable an interrupt when the active power no-load detection on Current Channel B occurs

7 VAR_NOLOADB Set to 1 to enable an interrupt when the reactive power no-load detection on Current Channel B occurs

8 VA_NOLOADB Set to 1 to enable an interrupt when the apparent power no-load detection on Current Channel B occurs

9 APSIGN_B Set to 1 to enable an interrupt when the sign of active energy has changed (Current Channel B)

10 VARSIGN_B Set to 1 to enable an interrupt when the sign of reactive energy has changed (Current Channel B)

11 ZXTO_IB Set to 1 to enable an interrupt when a zero crossing has been missing on Current Channel B for the length of time

specified in the ZXTOUT register

12 ZXIB Set to 1 to enable an interrupt when the current Channel B zero crossing occurs

13 OIB Set to 1 to enable an interrupt when the current Channel B peak has exceeded the overcurrent threshold set in the

OILVL register

Table 25. IRQSTATB Register (Address 0x230 and Address 0x330) and RSTIRQSTATB Register (Address 0x231 and

Address 0x331)

Bits Bit Name Description

0 AEHFB Set to 1 when the active energy register is half full (Current Channel B)

1 VAREHFB Set to 1 when the reactive energy register is half full (Current Channel B)

2 VAEHFB Set to 1 when the apparent energy register is half full (Current Channel B)

3 AEOFB Set to 1 when the active energy register has overflowed or underflowed (Current Channel B)

4 VAREOFB Set to 1 when the reactive energy register has overflowed or underflowed (Current Channel B)

5 VAEOFB Set to 1 when the apparent energy register has overflowed or underflowed (Current Channel B)

6 AP_NOLOADB Set to 1 when the active power no-load condition is detected on Current Channel B

7 VAR_NOLOADB Set to 1 when the reactive power no-load condition is detected on Current Channel B

8 VA_NOLOADB Set to 1 when the apparent power no-load condition is detected on Current Channel B

9 APSIGN_B Set to 1 when the sign of active energy has changed (Current Channel B)

10 VARSIGN_B Set to 1 when the sign of reactive energy has changed (Current Channel B)

11 ZXTO_IB Set to 1 when a zero crossing has been missing on Current Channel B for the length of time specified in the

ZXTOUT register

12 ZXIB Set to 1 when a current Channel B zero crossing is obtained

13 OIB Set to 1 when current Channel B peak has exceeded the overcurrent threshold set in the OILVL register