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Intel
®
82575EB Gigabit Ethernet Controller — Manageability EEPROM Read/Write Data -
EEMNGDATA (1014h; RO)
Intel
®
82575EB Gigabit Ethernet Controller 324632-003
Software Developer’s Manual and EEPROM Guide Revision: 2.1
336 January 2011
14.3.25 Manageability EEPROM Read/Write Data -
EEMNGDATA (1014h; RO)
14.3.26 Manageability Flash Control Register -
FLMNGCTL (1018h; R/W)
14.3.27 Manageability Flash Read Data - FLMNGDATA
Field Bit(s)
Initial
Value
Description
WRDATA 15:0 00h Write Data
Data written to the EEPROM.
RDDATA 31:16 X Read Data
Data returned from the EEPROM read.
Field Bit(s) Initial Value Description
ADDR 23:0 00h Address
This field is written by manageability along with Start Read or Start Write to
indicate the Flash address to read or write.
CMD 24:25 00h Command
Indicates which command should be executed. Valid only when the CMDV bit i–
set.
00b - Read command.
01b - Write command.
10b – Sector erase.
11b – Erase.
The op-codes used for Erase and Sector Erase commands are fixed according to
the values set in the FLASHOP register.
CMDV 26 0b Command Valid
When set, indicates that the manageability firmware issues a new command.
Cleared by hardware at the end of the command.
FLBUSY 27 0b Flash Busy
This bit indicates that the Flash is busy processing a Flash transaction and
shouldn’t be accessed.
Reserved 29:28 00h Reserved
DONE 30 1b Read Done
This bit clears after the CMDV bit is set by manageability and is set back again
when the Flash single read transaction completes.
When reading a burst transaction, the bit is cleared every time manageability
reads the FLMNGRDDATA register.
WRDONE 31 1b Global Done
This bit clears after the CMDV bit is set by manageability and is set back again
when the all Flash transactions complete. For example, the Flash unit finished to
read all the requested read or other single access (write and erase).