LU82551QM Intel, LU82551QM Datasheet - Page 66

• Manufacturer Part Number: LU82551QM
• Manufacturer: Intel

Specifications of LU82551QM

• Operating Supply Voltage (typ): 3.3V
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 196
• Lead Free Status / RoHS Status: Compliant

82551QM — Networking Silicon
9.1.22
9.2
60
Figure 21. Modem PCI Configuration Registers
Data Register
The data register is an 8-bit read only register that provides a mechanism for the 82551QM to
report state dependent maximum power consumption and heat dissipation. The value reported in
this register depends on the value written to the Data Select field in the PMCSR register. The power
measurements defined in this register have a dynamic range of 0 to 2.55 W with 0.01 W resolution
according to the Data Scale. The value in this register is hard-coded in the silicon. The structure of
the data register is listed in
Function 1: Modem PCI Configuration Space
In PCI and CardBus system, the 82551QM supports a dual function device: LAN/modem. The
LAN is defined as function zero, and the modem is defined as function one. The modem function is
active depending on the EEPROM setup.
Table 22. Ethernet Data Register
BIST
Modem Subsystem ID
Modem Status
Data Select
Reserved (PCI mode)/Modem CIS Pointer (CardBus mode)
9-15
Modem Header Type
0
1
2
3
4
5
6
7
8
Modem Memory Mapped Base Address Register
Modem I/O Mapped Base Address Register
Expansion ROM Base Address Register
Table
Reserved
Reserved Base Address Register
Reserved Base Address Register
Reserved Base Address Register
Reserved Base Address Register
Data Scale
Modem Configuration ID
22.
Modem Revision ID
2
2
2
2
2
2
2
2
2
0
D0 Power Consumption = 60 (600 mW)
D1 Power Consumption = 42 (420 mW)
D2 Power Consumption = 42 (420 mW)
D3 Power Consumption = 42 (420 mW)
D0 Power Dissipated = 60 (60 mW)
D1 Power Dissipated = 42 (420 mW)
D2 Power Dissipated = 42 (420 mW)
D3 Power Dissipated = 42 (420 mW)
Common Function Power Dissipated = 00
Reserved (00h)
Latency Timer
Modem Subsystem Vendor ID
Data Reported
Modem Command
Cache Line Size
Cap_Ptr
Datasheet
00h
04h
08h
0Ch
10h
14h
18h
1Ch
20h
24h
28h
2Ch
30h
34h