82583V Datasheet, PDF (106/374 Pages) Intel Corporation – Intel® 82583V GbE Controller

82583V GbE Controller—Interconnects
Table 34.
NVM Configuration Size
Configuration
No iSCSI boot¹
PXE only
iSCSI boot only
Both iSCSI boot and PXE
Minimum NVM Size
1 Kb
512 Kb
2 Mb
4 Mb
Memory Family
SPI EEPROM
SPI Flash
SPI Flash
SPI Flash
Table 35.
Compatible EEPROM Parts
Vendor
Atmel*
STM*
Catalyst*
1 Kb
AT25010N
95010W6
CAT25010S
2 Kb
AT25020N
95020W6
CAT25020S
32 Kb
AT25010N-10SI-2.7
AT25320N
CAT25C320S
Table 36.
Compatible Flash Parts
Vendor
Winbond*
Atmel
PMC*
SST*
512 Kb
N/A
AT25F512B
25LV512A
SST25VF512
1 Mb
W25X10BV
N/A
25LV010A
SST25VF010A
2 Mb
W25X20BV
AT25DF021
25LV020
SST25VF020B
4 Mb
W25X40BV
AT25DF041A
N/A
SST25VF040B
8 Mb
N/A
AT25DF081A
N/A
SST25VF080B
6.3.3
6.3.3.1
NVM Device Detection
The 82583V detects the device connected on the SPI interface in two phases.
1. It first detects the device type by the state of the NVMT strapping pin.
2. It then looks at the NVM content depending on a valid signature in word 0x12 in the
NVM.
In reference to the EEPROM, the 82583V detects the length of the address bytes by
sensing the signature at word 0x12. It then sets the NVADDS field in the EEC register.
The exact size of the NVM is fetched by the 82583V from word 0x0F and is stored in the
NVSize field in the EEC register. When operating with an EEPROM that has an invalid
signature, software can force the address length via the NVADDS field in the EEC
register. Controlling the address length enables software to access the EEPROM via the
parallel EERD and EEWR registers in all cases including invalid signature.
CRC Field
CRC calculation is done by software.
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