SI3482-A01-GM Silicon Laboratories Inc, SI3482-A01-GM Datasheet - Page 23

• Manufacturer Part Number: SI3482-A01-GM
• Description: IC CTLR POE 24-48PORT PSE 24-QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3482-A01-GM

• Applications: Power Over Ethernet Controller
• Current - Supply: 12.1mA
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-WFQFN Exposed Pad
• Product: Power Distribution
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.5.2. AdjustPortPower
Adjust the power granted to a PD.
Prototype:
Parameters:
Return Value:
An LLDP agent calls this routine to reallocate the power granted to a PD. The agent can request more power than
is currently granted or it can request less power than is currently granted. This routine allows an LLDP agent to
dynamically change the amount of power granted to a PD during the course of a connection. A port must be on
before its power can be adjusted.
4.6. System Configuration
The System Configuration routines allow a User Interface component to set and get
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4.6.1. SetPowerProvided
Set the amount of power that is output from a power supply.
Prototype:
Parameters:
Return Value:
4.6.2. GetPowerProvided
Get the amount of power that is output from a power supply.
Prototype:
Parameters:
Return Value:
4.6.3. SetReservedPower
Set the percentage of power that is reserved from granting.
Prototype:
Parameters:
Return Value:
If the granting policy is consumption-based, the Power Manager holds this amount of power in reserve. The Power
Manager does not use the reserved power to grant new requests. This creates a power buffer that reduces the
likelihood of system overloads caused by momentary surges in consumption.
4.6.4. GetReservedPower
Get the percentage of power that is reserved from granting.
Prototype:
Parameters:
Return Value:
Power Provided
Reserved Power
Overload Limit
Granting Policy
Retry Policy
Power Location
INT8 AdjustPortPower ( UINT8 Port, INT32 Power )
Port
Power
Zero (for success) or an error code.
INT8 SetPowerProvided ( UINT8 PowerSupply, INT32 Power )
PowerSupply
Power
Zero (for success) or an error code.
INT32 GetPowerProvided ( UINT8 PowerSupply )
PowerSupply
Power provided by the power supply in milliwatts or an error code.
INT8 SetReservedPower ( INT8 Reserved )
Reserved
Zero (for success) or an error code.
INT8 GetReservedPower ( void )
None
Reserved power as a percentage of the total power provided or an error code.
The port number (1–48)
Requested port power in milliwatts.
Reserved power as a percentage of the total power provided.
The power supply number (1–3)
Power provided by the power supply in milliwatts.
The power supply number (1–3)
Rev. 0.1
Si3482
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