MCP3909RD-3PH3 Microchip Technology, MCP3909RD-3PH3 Datasheet - Page 25

• Manufacturer Part Number: MCP3909RD-3PH3
• Description: REF DESIGN FOR MCP3909 W/18F2520
• Manufacturer: Microchip Technology

Specifications of MCP3909RD-3PH3

• Main Purpose: Power Management, Energy/Power Meter
• Utilized Ic / Part: MCP3909, PIC18F2520, PIC18F4550
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

3.4
3.4.1
© 2008 Microchip Technology Inc.
bit 15
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 13-15
bit 11-12
bit 8-10
bit 6-7
bit 3-5
bit 2
bit 1
bit 0
R/W-0
PGA1
APP2
R/W
CONFIGURATION AND OUTPUT REGISTERS
PIC18F2520 Calculation and Register Description
MODE1 Register
APP: Apparent Power Calculation Mode Bits (not implemented)
ACT: Active Power Calculation Mode Bits (not implemented)
Unimplemented: Read as ‘0’
PGA: PGA Bits (not implemented)
CF Phase y: Active Energy CF Phase Enable Bits
1 = Enabled to be accumulated into the total energy registers or CF pulse output
0 = Disabled and is not acculated into the total energy registers or CF pulse output
Absolute: Positive Only Energy Accumulation Mode
1 = Positive Energy Only
0 = Both negative and positive energy accumulated (negative energy is subtracted)
Phase: The Phase Bit
1 = Single Point Phase Correction
0 = Multi-Point Phase Correction (future)
CREEP: No-Load Threshold Bit
1 = Enabled
0 = Disabled
PGA0
APP1
R/W
R/W
REGISTER 3-1:
The mode register controls the operation of the energy meter. The bit functions are
defined by the table below.
MODE1
Name
W = Writable bit
‘1’ = Bit is set
APP0
CF_C
R/W
R/W
Bits
16
MODE1 Register
ACT1
CF_B
R/W
R/W
Address
0x000
‘0’ = Bit is cleared
U = Unimplemented bit, read as ‘0’
ACT0
CF_A
R/W
R/W
R/W
Cof
ABSOLUTE
R/W
U-0
—
x = Bit is unknown
PHASE
R/W
U-0
—
DS51643B-page 21
CREEP
R/W
U-0
—
bit 8
bit 0