Filter
Top Products
Hardware Accessed Words — Intel
®
82575EB Gigabit Ethernet Controller
324632-003 Intel
®
82575EB Gigabit Ethernet Controller
Revision: 2.1 Software Developer’s Manual and EEPROM Guide
January 2011 57
4.5.1.3 Subsystem ID (Word 0Bh)
If the Load Subsystem IDs bit in the Initialization Control Word 1 (0Ah) is set, this word is used to
initialize the Subsystem ID. Its default value is 0h.
4.5.1.4 Subsystem Vendor ID (Word 0Ch)
If the Load Subsystem IDs bit in the Initialization Control Word 1 (0Ah) is set, this word is used to
initialize the Subsystem Vendor ID. Its default value is 8086h.
4.5.1.5 Device ID (Word 0Dh, 11h)
If the Load Device IDs bit in the Initialization Control Word 1 (0Ah) is set, this word is used to initialize
the Device ID of LAN0 and LAN1 functions, respectively. Its default value is 10A7h.
4.5.1.6 Dummy Device ID (Word 1Dh)
If the Load Device IDs in word 0Ah is set, this word is used to initialize the Device ID of dummy
devices. Its default value is 10A6h
4.5.1.7 Initialization Control 2 (Word 0Fh)
This is the second word read by the 82575 and contains additional initialization values that:
6 SDP_
IDDQ_E
N
0b When set, SDP keeps their value and direction when the 82575 enters dynamic IDDQ
mode. Otherwise, SDP moves to HighZ and pull up mode in dynamic IDDQ mode.
5 Deadlock
Timeout
Enable
1b If set, a device granted access to the EEPROM that does not toggle the interface for more
than 1 second might have the grant revoked.
0b = Disable.
1b - Enable.
4 ILOS 0b Default setting for the Loss-of-Signal Polarity setting for CTRL[7]. The hardware default
value is 0b.
3 Power
MNG
1b This bit defines the 82575 power management support:
0b = The power management registers set is read only. The 82575 does not execute a
hardware transition to D3. Note: This setting is for testing purposes only.
1b = Full support for power management. For normal operation, this bit must be set to
1b.
2 Reserved 0b Reserved.
1 Load
Subsys-
tem ID
1b When this bit equals 1b, the 82575 loads its PCIe* Subsystem ID and Subsystem Vendor
ID from the EEPROM words 0Bh and 0Ch.
0b = Do not load.
1b = Load.
0 Load
Vendor/
Device
ID
1b When this bit is set to 1b, the 82575 loads its PCIe* device ID from EEPROM words 0Dh,
11h, and 1Dh.
0b = Do not load.
1b = Load.
Table 6. Initialization Control 1 (Word 0Ah)
Bit(s) Name Default Description