RC82562EP Intel, RC82562EP Datasheet - Page 28
RC82562EP
Manufacturer Part Number
RC82562EP
Description
IC ETH 10/100 PLC DEV CTRL 64BGA
Manufacturer
Intel
Specifications of RC82562EP
Rohs Status
RoHS non-compliant
Controller Type
Ethernet Controller
Interface
IEEE 802.3
Voltage - Supply
3.135 V ~ 3.465 V
Mounting Type
Surface Mount
Package / Case
64-BGA
Current - Supply
-
Operating Temperature
-
Other names
832361
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PCI Interface
20
Table 5.
Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual
Power Management Control/Status Register
While wake-up events are not allowed in the D0 power state, hardware does not automatically
preclude this functionality. To ensure that wake-up events are not generated when in D0, software
must clear the PME Enable bit when putting the device into that state. To ensure that no spurious
wake-up events are generated by the function, the PME Status bit (in the PMDR register or the
PMCSR) must be specifically cleared (by writing a 1) when the PME Enable bit is set.
To support Wake on LAN mode (pre-boot wake), the PME Enable and PME Status bits are set with
known values after power-up reset. The ALTRST# pin should be connected to the device auxiliary
power good signal on the motherboard so that it will be active low on system power up. Assertion
of ALTRST# clears the PME Status bit and sets the PME Enable bit if the clock is active on the
CLK pin. Thus, if the Wake on LAN (WOL) bit in the EEPROM is set, the device will wake up the
system upon receiving of Magic Packet*.
Bit
15
14:13
12:9
8
7:5
4
3:2
01:00
Value at Reset
82558A: 0
82558B, 82559:
no auxiliary power
- 0
Sticky bit
82558: 00
82559: 10 or 00
0000
82558A = 0
82558B & 82559
= 0
Unknown
(0 if no auxiliary
power available)
000
0
00
00
R / W
Read
Clear
RO
R/W
Read
Clear
RO
RO
R/W
Description
PME Status. This bit is set upon a wake-up event from the link. It is
independent of the state of the PME_Enable bit. When software
writes 1 to this bit it is cleared and the device stops asserting PME#
(if enabled).
Data Scale. The Data Scale is not supported on the 82558 and
always returns 0. For the 82559, it is a 2-bit read-only field
indicating the data register scaling factor. For the 82559, it equals
10b for registers 0 through 8 and 00b for registers 9 through 15.
Data Select. This 4-bit field selects which data is reported through
the Data Register and Data Scale field. This register is only
supported on the 82559 and later generation devices.
PME Enable. This bit enables the device to assert PME#.
Reserved.
Dynamic Data. The 82558 does not implement this register and
returns 0. The 82559 does not support the ability to monitor power
consumption dynamically.
Reserved.
Power State. This 2-bit field is used both to determine the current
power state of the 82258 or 82559 and to set the 82558 or 82559
into a new power state. The definition of the field values is given
below.
00b - D0
01b - D1
10b - D2
11b - D3
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