Datasheet

ADE7880 Data Sheet
Rev. A| Page 90 of 104
Bit Mnemonic Default Value Description
9 REVPSUM1 0
When this bit is set to 1, it indicates that the sum of all phase powers in the CF1 data
path has changed sign. The sign itself is indicated in Bit 3 (SUM1SIGN) of the PHSIGN
register (see Table 46).
10 REVFRPA 0
When this bit is set to 1, it indicates that the Phase A fundamental reactive power
has changed sign. The sign itself is indicated in Bit 4 (AFVARSIGN) of the PHSIGN
register (see Table 46).
11 REVFRPB 0
When this bit is set to 1, it indicates that the Phase B fundamental reactive power
has changed sign. The sign itself is indicated in Bit 5 (BFVARSIGN) of the PHSIGN
register (see Table 46).
12 REVFRPC 0
When this bit is set to 1, it indicates that the Phase C fundamental reactive power
has changed sign. The sign itself is indicated in Bit 6 (CFVARSIGN) of the PHSIGN
register (see Table 46).
13 REVPSUM2 0
When this bit is set to 1, it indicates that the sum of all phase powers in the CF2 data
path has changed sign. The sign itself is indicated in Bit 7 (SUM2SIGN) of the PHSIGN
register (see Table 46).
14 CF1
When this bit is set to 1, it indicates a high-to-low transition has occurred at CF1 pin;
that is, an active low pulse has been generated. The bit is set even if the CF1 output
is disabled by setting Bit 9 (CF1DIS) to 1 in the CFMODE register. The type of power
used at the CF1 pin is determined by Bits[2:0] (CF1SEL[2:0]) in the CFMODE register
(see Table 44).
15 CF2
When this bit is set to 1, it indicates a high-to-low transition has occurred at the CF2
pin; that is, an active low pulse has been generated. The bit is set even if the CF2
output is disabled by setting Bit 10 (CF2DIS) to 1 in the CFMODE register. The type of
power used at the CF2 pin is determined by Bits[5:3] (CF2SEL[2:0]) in the CFMODE
register (see Table 44).
16 CF3
When this bit is set to 1, it indicates a high-to-low transition has occurred at CF3 pin;
that is, an active low pulse has been generated. The bit is set even if the CF3 output
is disabled by setting Bit 11 (CF3DIS) to 1 in the CFMODE register. The type of power
used at the CF3 pin is determined by Bits[8:6] (CF3SEL[2:0]) in the CFMODE register (see
Table 44).
17 DREADY 0
When this bit is set to 1, it indicates that all periodical (at 8 kHz rate) DSP
computations have finished.
18 REVPSUM3 0
When this bit is set to 1, it indicates that the sum of all phase powers in the CF3 data
path has changed sign. The sign itself is indicated in Bit 8 (SUM3SIGN) of the PHSIGN
register (see Table 46).
19 HREADY 0
When this bit is set to 1, it indicates the harmonic block output registers have been
updated. If Bit 1 (HRCFG) in the HCONFIG register is cleared to 0, this flag is set to 1
every time the harmonic block output registers are updated at 8 kHz rate. If Bit
HRCFG is set to 1, the HREADY flag is set to 1 every time the harmonic block output
registers are updated at 8 kHz rate starting 750 ms after the harmonic block setup .
31:18 Reserved 0 0000 0000 0000 Reserved. These bits are always 0.