SI3482-A01-GM Silicon Laboratories Inc, SI3482-A01-GM Datasheet - Page 28

• 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

Si3482
4.7.8. GetPortPowerLimit
Get the power limit of a port.
Prototype:
Parameters:
Return Value:
4.8. Power Supply Status
The Power Supply Status routines allow a User Interface component to get:

4.8.1. SetPowerSupplyStatus
Set the status of a power supply.
Prototype:
Parameters:
Return Value:
In platforms that do not have signals to indicate the presence of power supplies, this routine allows a User Interface
component to simulate the insertion and removal of power supplies. However, the Si3482 does have power supply
signals (PS1, PS2, and PS3). If a User Interface component calls this routine, the Power Manager does nothing
and returns SUCCESS.
4.8.2. GetPowerSupplyStatus
Get the status of a power supply.
Prototype:
Parameters:
Return Value:
Table 20 lists the Power supply status values.
A User Interface component calls this function to determine whether a power supply is present in a bay. If the
voltage on the specified power supply pin (PS1, PS2, or PS3) is high, this routine returns
STATUS_POWER_SUPPLY_INSERTED; otherwise, this routine returns STATUS_POWER_SUPPLY_REMOVED.
28
Power Supply Status
Power Supply Status
INT32 GetPortPowerLimit ( UINT8 Port )
Port
Power limit in milliwatts or an error code
INT8 SetPowerSupplyStatus (UINT8 PowerSupply, INT8 Status)
PowerSupply
Status
Zero (for success) or an error code.
INT8 GetPowerSupplyStatus ( UINT8 PowerSupply )
PowerSupply
The status of the power supply.
Removed
Inserted
The port number (1–48)
The power supply number (1–3)
Power supply status
The power supply number (1–3)
Table 20. Power Supply Status
Value
0
1
Rev. 0.1
STATUS_POWER_SUPPLY_INSERTED
STATUS_POWER_SUPPLY_REMOVED
Symbol