SI3482-A01-GMR Silicon Labs, SI3482-A01-GMR Datasheet - Page 19

• Manufacturer Part Number: SI3482-A01-GMR
• Description: Power Switch ICs - POE / LAN 12/24/48-port Power Manager
• Manufacturer: Silicon Labs

Specifications of SI3482-A01-GMR

• Rohs: yes

4.3.2. GetPortStatus
Get the status of a port.
Prototype:
Parameters:
Return Value:
Table 10 lists the Port status values.
If a port is blocked, then the PD consumed more power than it was granted (port overload), and the retry policy is
“retry after reconnect”. To remove the block, the user must physically disconnect the PD from the port. Another way
to remove the block is to disable and then reenable the port.
4.3.3. GetPortInfo
Get low-level port information.
Prototype:
Parameters:
Return Value:
A PORTINFO structure has the following layout:
typedef struct
{
} PORTINFO;
Powered On
Powered Off
Forced On
Forced Off
Disabled
Blocked
Denied
Status
UINT8
UINT8
UINT16
UINT16
char
char
*SiliconVersion;
*FirmwareVersion;
Detection;
Classification;
Current;
PowerSupplyVoltage;
INT8 GetPortStatus ( UINT8 Port )
Port
Port status value or an error code.
INT8 GetPortInfo ( UINT8 Port, PORTINFO *PortInfo )
Port
PortInfo
Zero (for success) or an error code
Value
0
1
2
3
4
5
6
STATUS_PORT_POWERED_OFF
STATUS_PORT_POWERED_ON
STATUS_PORT_FORCED_OFF
The port number (1–48)
A pointer to a PORTINFO structure, where the port information is returned.
STATUS_PORT_FORCED_ON
The port number (1–48)
STATUS_PORT_DISABLED
STATUS_PORT_BLOCKED
STATUS_PORT_DENIED
Table 10. Port Status Values
Symbol
/* in mA */
/* in mV */
Rev. 0.1
The port is off because it is not allowed to
turn on.
A PD is connected and receiving power.
The port is off because a PD is not con-
nected.
The port is off because there is not enough
power remaining to grant the power request.
The port is off because of a port overload.
The user forced the port on.
The user forced the port off.
Description
Si3482
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