Data Sheet

Ethernet Controller I210 —Interconnects

Update of the PCIe Expansion/Option ROM does not need to be protected by the double

image policy as it is not as critical to the I210 operation as the firmware image module.

Figure 3.6. General Organization of the Flash

Notes: Figure 3.6 shows the general NVM organization. Due to this, both the secured and free

provisioning areas of the firmware, are not mapped to any Flash address in the diagram.

On Flash parts larger than 1 MB, the space from byte address 0x002000 to 0x081FFF is

always reserved to the Expansion/Option ROM module.

The first NVM images produced will fit in 0.5 MB Flash parts (assuming no expansion/option ROM

module). The firmware image and free provisioning area is sized by 244 KB (or 448 KB) each. The

mDNS records might overlap with the beginning of the free provisioning area. In this case, the firmware

code itself has a size budget of up of to 235 KB.

0x 000000

0x000FFF

0x001FFF

Legacy EEPROM

(bank 1)

0x 001000

Byte Address

FLASH

Free Provisioning

Area

Legacy EEPROM

(bank 0)

Shadow RAM

EEPROM Image

Update

Use

Firmware Image

Use

Update

Expansion/

Option ROM

Module

0x002000

0x082000

448 KB

0x081FFF

CSS Header

mDNS Records

Flash Table

RO Update Section

16 KB

Secured Area

4 KB