ADE7758 Analog Devices, ADE7758 Datasheet - Page 61

• Manufacturer Part Number: ADE7758
• Description: Poly Phase Multifunction Energy Metering IC with Per Phase Information
• Manufacturer: Analog Devices

Address
[A6:A0]
0x47
0x48
0x49 to
0x7D
0x7E
0x7F
1
OPERATIONAL MODE REGISTER (0x13)
The general configuration of the ADE7758 is defined by writing to the OPMODE register. Table 14 summarizes the functionality of each
bit in the OPMODE register.
Table 14. OPMODE Register
Bit
Location
0
1
2
3 to 5
6
7
R/W: Read/write capability of the register. R: Read-only register. R/W: Register that can be both read and written.
Name
VARCFNUM
VARCFDEN
RESERVED
CHKSUM
VERSION
Bit
Mnemonic
DISHPF
DISLPF
DISCF
DISMOD
SWRST
RESERVED
R/W
R/W
R/W
−
R
R
0
Default
Value
0
1
0
0
0
1
Length
16
12
−
8
8
Description
The HPFs (high-pass filter) in all current channel inputs are disabled when this bit is set.
The LPFs (low-pass filter) in all current channel inputs are disabled when this bit is set.
The frequency outputs APCF and VARCF are disabled when this bit is set.
By setting these bits, ADE7758’s ADCs can be turned off. In normal operation, these bits should be
left at Logic 0.
DISMOD[2:0]
0
1
0
1
0
1
0
1
Software Chip Reset. A data transfer to the ADE7758 should not take place for at least 18 µs after a
software reset.
This should be left at 0.
Default
Value
0
0x3F
−
−
−
0
0
0
0
1
1
1
1
Description
Reactive Power CF Scaling Numerator Register. The content of this register is
used in the numerator of the VARCF output scaling. Bits [15:13] indicate reverse
polarity reactive power measurement for Phase A, Phase B, and Phase C in order,
i.e., Bit 15 is Phase A, Bit 14 is Phase B, and so on.
Reactive Power CF Scaling Denominator Register. The content of this register is
used in the denominator of the VARCF output scaling.
Reserved.
Checksum Register. The content of this register represents the sum of all the
ones in the last register read from the SPI port.
Version of the Die.
Rev. A | Page 61 of 68
0
0
1
1
0
0
1
1
Description
Normal operation.
Redirect the voltage inputs to the signal paths for the current channels
and the current inputs to the signal paths for the voltage channels.
Switch off only the current channel ADCs.
Switch off current channel ADCs and redirect the current input signals
to the voltage channel signal paths.
Switch off only the voltage channel ADCs.
Switch off voltage channel ADCs and redirect the voltage input signals
to the current channel signal paths.
Put the ADE7758 in sleep mode.
Put the ADE7758 in power-down mode.
ADE7758