MCP3909RD-3PH1 Microchip Technology, MCP3909RD-3PH1 Datasheet - Page 26

• Manufacturer Part Number: MCP3909RD-3PH1
• Description: REF DESIGN MCP3909 3PH ENGY MTR
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Primary Attributes: 3-Ph, 220 VAC, In Case, LCD, USB, GUI
• Secondary Attributes: Opto-Isolated Interface for Safety
• Operating Voltage: 220 V
• Operating Current: 5 A
• Description/function: Energy Meter
• For Use With/related Products: MCP3909
• Lead Free Status / RoHS Status: Not applicable / Not applicable

MCP3909 3-Phase Energy Meter Reference Design
3.4.2
DS51643B-page 22
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 15-3
bit 2
bit 1
bit 0
U-0
U-0
—
—
STATUS1 Register
Unimplemented: Read as ‘0’
PHA_S: Phase A Sign Bit.
(if enabled, see MODE1 bits).
1
0
PHB_S: Phase B Sign Bit.
(if enabled, see MODE1 bits).
1
0
PHC_S: Phase C Sign Bit.
(if enabled, see MODE1 bits).
1
0
=
= Operation Normal
=
= Operation Normal
=
= Operation Normal
U-0
U-0
—
—
Negative active power, this may indicate the CT is wired in backwards
Negative active power, this may indicate the CT is wired in backwards
Negative active power, this may indicate the CT is wired in backwards
REGISTER 3-2:
The STATUS1 register contains the operational status of the energy meter. The bit
functions are defined by the table below.
STATUS1
Name
W = Writable bit
‘1’ = Bit is set
U-0
U-0
—
—
Bits
16
This is the sign bit of raw active power before absolute value taken
This is the sign bit of raw active power before absolute value taken
This is the sign bit of raw active power before absolute value taken
STATUS1 Register
U-0
U-0
—
—
Address
0x004
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
U-0
U-0
—
—
Cof
R
PHA_S
U-0
—
R
© 2008 Microchip Technology Inc.
x = Bit is unknown
PHB_S
U-0
—
R
PHC_S
U-0
—
R
bit 8
bit 0