GD82559C S L3DF Intel, GD82559C S L3DF Datasheet - Page 77

• Manufacturer Part Number: GD82559C S L3DF
• Manufacturer: Intel

Specifications of GD82559C S L3DF

• Lead Free Status / Rohs Status: Not Compliant

8.2.10
8.2.11
8.2.12
8.2.13
8.2.14
8.2.15
Datasheet
Note: The modem and Ethernet functions share the same INTA# pin.
Modem Subsystem ID Register
The Modem Subsystem ID is a 16 bit read only register. Its value is loaded from the EEPROM and
is a reflection of register 2EH in Function 0, LAN (Ethernet) function.
Modem Capabilities Pointer
The Modem Capability Pointer is a hard coded, byte register that contains the value DCH. It
provides an offset within the Configuration Space for the location of the power management
registers.
Modem Interrupt Register
The Modem Interrupt register specifies whether or not the modem requires an interrupt. This
register is hard coded identically to register 3CH in Function 0, LAN (Ethernet). It indicates that
the modem requires interrupt support.
Modem Power Management Capabilities Register
The Modem Power Management Capabilities register is a Dword field that indicates if this function
has power management capability, as well as identifying which power management capabilities are
supported. The 82559 reports a value of FE31H if it is connected to an auxiliary power source and
7E21H otherwise.
Modem Power Management Control/Status Register
The Modem Power Management Control/Status Register is a word register. It is used to manage the
modem’s power management state. It also enables and monitors power management events. The
Modem Power Management Control/Status Register structure is identical to register E0H in
Function 0, LAN (Ethernet) function.
Modem Data Register
The Modem Data register has similar functionality to register E2H in Function 0, LAN (Ethernet).
The register at location E2H reports power consumption of the modem function. The value of
power consumption and power dissipation are loaded from the EEPROM.
Table 15. Ethernet Data Register
Data Select
8 - 15
0 - 3
4 - 7
Data Scale
2
2
0
D0 to D3 Power Consumption (loaded from
EEPROM)
D0 to D3 Power Dissipated (loaded from
EEPROM)
Reserved (00H)
Data Reported
Networking Silicon — 82559
69