82598EB Datasheet, PDF (305/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Register Descriptions
EE_DO
3
FWE
5:4
EE_REQ
6
EE_GNT
7
EE_PRES
8
Auto_RD
9
EE_ADDR_SIZE 10
EE_Size
14:11
X
01b
0b
0b
(See
Descriptio
n)
0b
0b
0010b¹
Data output bit from the EEPROM
The EE_DO input signal is mapped directly to this bit in the register and
contains the EEPROM data output. This bit is read-only from a software
perspective; writes to this bit has no effect.
Flash Write Enable Control
These two bits control whether or not writes to the Flash are allowed.
00b = Flash erase (along with bit 31 in the FLA register).
01b = Flash writes disabled.
10b = Flash writes enabled.
11b = Not allowed.
Request EEPROM Access
Software must write a 1b to this bit to get direct EEPROM access. It has access
when EE_GNT is set to 1b. When software completes the access, it must then
write a 0b.
Grant EEPROM Access
When this bit is set to 1b, software can access the EEPROM using the EE_SK,
EE_CS, EE_DI, and EE_DO bits. This field is read-only.
EEPROM Present
Setting this bit to 1b indicates that an EEPROM is present and has the correct
signature field. This field is read-only.
EEPROM Auto-Read Done
When set to 1b, this bit indicates that the auto-read by hardware from the
EEPROM is done. This bit is also set when the EEPROM is not present or when its
signature field is not valid. This field is read-only.
EEPROM Address Size
This field defines the address size of the EEPROM:
0b = 8- or 9-bit addresses.
1b = 16-bit address.
This field is read-only.
EEPROM Size
This field defines the size of the EEPROM (see Table 4-4). This field is read-only.
PCI _ANA_done 15
0b
PCI _Core_
16
0b
done
PCI _
17
0b
genarl _done
PCIe Analog Done
When set to 1b, indicates that the PCIe analog section read from EEPROM is
done. This bit is cleared when auto-read starts. This bit is also set when the
EEPROM is not present or when its signature field is not valid.
PCIe Core Done
When set to 1b, indicates that the core analog section read from EEPROM is
done. This bit is cleared when auto-read starts. This bit is also set when the
EEPROM is not present or when its signature field is not valid. This field is read-
only.
Note: This bit returns the relevant done indication for the function that reads
the register.
PCIe General Done
When set to 1b, indicates that the PCIe general section read from the EEPROM
is done. This bit is cleared when auto-read starts. This bit is also set when the
EEPROM is not present or when its signature field is not valid. This field is read-
only.
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