78M6610+LMU Data Sheet
Save to Flash Command
Use the ACC command to save to flash the calibration coefficients and defaults for nonvolatile registers.
Upon reset or power-on, the values stored in flash will become new system defaults. The following table
describes the ACC command bits:
Bit(s)
23:12
11:8
5
Value
0xACC
0x2
Description
“Access” Command.
2: Save defaults to flash memory for NV registers.
Line Lock Bit.
1
4
TC
Enable Die Temperature (Gain) Compensation 1 = enable; 0 = disable
(debug only).
Control Register
A CONTROL register is provided for resetting the tracked Energy and Min/Max measurement values and
for clearing energy results.
Control Bit
Description
23:3
Reserved for future use
2
1
0
Clear Energy Accumulators and Frame Counter
Clear Energy Counters
Reset Min/Max Tracking
Configuration Register
The CONFIG register described throughout Section 2.1 allows the user to configure which sensor (slot)
inputs are used for voltage and current measurements. This section summarizes the configuration bits
available to the user.
The two MSBs select the reference voltage slot for deriving zero-crossing detection and line frequency.
CONFIG[23:22]
00
01
10
11
Voltage reference
S0
S2
S0-S2
S0+S2
The remaining bits configure which the sensor inputs are used to derive line voltages and load currents.
CONFIG
Bits
19:18 17:16 15:14 13:12 11:10
9:8
7:6
5:4
3:2
1:0
Multiplier
Source
M2 M0 M2 M0 M2
M0
M3
M1
M3
M1
VC
VB
VA
IB
IA
There are four choices for every M value as shown below. See Section 2.1 for more information.
Multiplier Bits
00
01
10
11
M (multiplier) Value
-1
0
1
2
43
Rev 0
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
