Datasheet

ADE7854/ADE7858/ADE7868/ADE7878 Data Sheet
Rev. G | Page 82 of 100
Address
Register
Name R/W
1
Bit
Length
Bit Length During
Communication
2
Type
3
Default
Value Description
0x43B9 to
0x43BE
Reserved N/A
4
N/A
4
N/A
4
N/A
4
0x000000
These memory locations should be kept
at 0x000000 for proper operation.
0x43BF ISUM R 28 32 ZP S N/A
4
Sum of IAWV, IBWV, and ICWV registers
(ADE7868 and ADE7878 only).
0x43C0 AIRMS R 24 32 ZP S N/A
4
Phase A current rms value.
0x43C1 AVRMS R 24 32 ZP S N/A
4
Phase A voltage rms value.
0x43C2 BIRMS R 24 32 ZP S N/A
4
Phase B current rms value.
0x43C3 BVRMS R 24 32 ZP S N/A
4
Phase B voltage rms value.
0x43C4
CIRMS
R
24
32 ZP
S
N/A
4
Phase C current rms value.
0x43C5 CVRMS R 24 32 ZP S N/A
4
Phase C voltage rms value.
0x43C6 NIRMS R 24 32 ZP S N/A
4
Neutral current rms value (ADE7868 and
ADE7878 only).
0x43C7 to
0x43FF
Reserved N/A
4
N/A
4
N/A
4
N/A
4
N/A
4
These memory locations should not be
written for proper operation.
1
R is read, and W is write.
2
32 ZPSE = 24-bit signed register that is transmitted as a 32-bit word with four MSBs padded with 0s and sign extended to 28 bits. Whereas 32 ZP = 28- or 24-bit signed
or unsigned register that is transmitted as a 32-bit word with four MSBs or eight MSBs, respectively, padded with 0s.
3
U is unsigned register, and S is signed register in twos complement format.
4
N/A means not applicable.
Table 31. Internal DSP Memory RAM Registers
Address
Register
Name R/W
1
Bit
Length
Bit Length
During
Communication Type
2
Default
Value Description
0xE203 Reserved R/W 16 16 U 0x0000
This memory location should not be written for
proper operation.
0xE228 Run R/W 16 16 U 0x0000
Run register starts and stops the DSP. See the
Digital Signal Processor section for more details.
1
R is read, and W is write.
2
U is unsigned register, and S is signed register in twos complement format.
Table 32. Billable Registers
Address
Register
Name R/W
1, 2
Bit
Length
2
Bit Length
During
Communication
2
Type
2, 3
Default
Value Description
0xE400 AWATTHR R 32 32 S 0x00000000 Phase A total active energy accumulation.
0xE401 BWATTHR R 32 32 S 0x00000000 Phase B total active energy accumulation.
0xE402 CWAT THR R 32 32 S 0x00000000 Phase C total active energy accumulation.
0xE403 AFWATTHR R 32 32 S 0x00000000
Phase A fundamental active energy
accumulation (ADE7878 only).
0xE404 BFWAT THR R 32 32 S 0x00000000
Phase B fundamental active energy
accumulation (ADE7878 only).
0xE405 CFWATTHR R 32 32 S 0x00000000
Phase C fundamental active energy
accumulation (ADE7878 only).
0xE406 AVARHR R 32 32 S 0x00000000
Phase A total reactive energy accumulation
(ADE7858, ADE7868, and ADE7878 only).
0xE407 BVARHR R 32 32 S 0x00000000
Phase B total reactive energy accumulation
(ADE7858, ADE7868, and ADE7878 only).
0xE408 CVARHR R 32 32 S 0x00000000
Phase C total reactive energy accumulation
(ADE7858, ADE7868, and ADE7878 only).
0xE409
AFVARHR
R
32
32
S
0x00000000
Phase A fundamental reactive energy
accumulation (ADE7878 only).
0xE40A BFVARHR R 32 32 S 0x00000000
Phase B fundamental reactive energy
accumulation (ADE7878 only).
0xE40B CFVARHR R 32 32 S 0x00000000
Phase C fundamental reactive energy
accumulation (ADE7878 only).