ADE9178 datasheet(75/122 Pages) AD

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Data Sheet

ADE9178

analog.com

Rev. A | 75 of 122

Table 34. ADE9178 Register Details (Continued)

Addr

Name

Bits

Bit Name

Settings

Description

Reset

Access

ZX After PCF.

ZX Before HPF.

RMSONE_SRC_SEL

RMSONE Sample Source

Select. Selects samples to be

used for the one-cycle RMS

calculation.

0x1

R/W

Samples After HPF Used for

RMSONE.

Samples Before HPF Used for

RMSONE.

RMSHALF_SRC_SEL

Fast RMSHALF Sample

Source Select. Selects

samples to be used for the half-

cycle RMS calculation.

0x1

R/W

Samples After HPF Used for

RMSHALF.

Samples Before HPF Used for

RMSHALF.

DISAPLPF

LPF Active Power Disable. Set

this bit to disable the LPF in the

total active power datapath.

0x0

R/W

[8:6]

HPF_CRN

HPF Corner Selection. HPF

corner (f3dB) enabled when the

HPFDIS bit in the CONFIG0

0x6

R/W

000

38.695 Hz.

001

19.6375 Hz.

010

9.895 Hz.

011

4.9675 Hz.

100

2.49 Hz.

101

1.2475 Hz.

110

0.625 Hz.

111

0.3125 Hz.

HPFDIS

HPF Disable. Set this bit to

disable HPF for all channels.

0x0

R/W

[4:3]

PERIOD_AVG_CFG

Period Averaging

Configuration. Further

averaging to reduce period

jitter.

0x0

R/W

No Additional Averaging.

Average by 8.

Average by 16.

Average by 32.

UPERIOD_SEL

User-Line Period Enable. Set

this bit to use a user-configured

line period, in USER_PERIOD,

for RMSONE measurements of

all channels. If this bit is clear,

the phase voltage line period

selected by the LP_SEL[1:0]

bits in the ZX_LP_SEL register

is used.

0x0

R/W

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