Data Sheet

Flash Map—Ethernet Controller I210
235
6.8.6.2 Configuration Customization Options PCIe Function (Word 0x31)
Word 0x31 of the Flash contains settings that can be programmed by an OEM or network administrator
to customize the operation of the software. These settings cannot be changed from within the Control-
S setup menu. The lower byte contains settings that would typically be configured by a network
administrator using an external utility; these settings generally control which setup menu options are
changeable. The upper byte is generally settings that would be used by an OEM to control the operation
of the agent in a LOM environment, although there is nothing in the agent to prevent their use on a NIC
implementation. The default value for this word is 0x4000.
7:6 PT
Prompt Time
These bits control how long the CTRL-S setup prompt message is displayed, if enabled by DIM.
00b = 2 seconds (default).
01b = 3 seconds.
10b = 5 seconds.
11b = 0 seconds.
Note: CTRL-S message is not displayed if 0 seconds prompt time is selected.
5
Disable
iSCSI
Setup Menu
This controls the iSCSI init message (Ctrl+D menu prompt) when iSCSI is disabled.
• When iSCSI option ROM is disabled and this bit is set to 1b, the init message is not displayed for the
port.
• When iSCSI option ROM is disabled and this bit is set to 0b, the init message is displayed for the
port.
• When iSCSI option ROM is enabled this bit does not matter, as the init message is displayed for the
port.
The default is 0b.
4:3 DBS
Default Boot Selection
These bits select which device is the default boot device. These bits are only used if the agent detects
that the BIOS does not support boot order selection or if the MODE field of word 0x31 is set to
MODE_LEGACY.
00b = Network boot, then local boot (default).
01b = Local boot, then network boot.
10b = Network boot only.
11b = Local boot only.
2:0 PS
Protocol Select.
See Table 6-9 for details of this field.
Bit(s) Name Function
15:14 SIG
Signature. Must be set to 01b to indicate that this word has been programmed by the agent or other
configuration software.
13 RFU Reserved. Must be 0b.
12 RFU Reserved. Must be 0b.
11 RETRY
Selects Continuous Retry operation.
If this bit is set, IBA does NOT transfer control back to the BIOS if it fails to boot due to a network error
(such as failure to receive DHCP replies). Instead, it restarts the PXE boot process again. If this bit is set,
the only way to cancel PXE boot is for the user to press ESC on the keyboard. Retry is not attempted due
to hardware conditions such as an invalid Flash checksum or failing to establish link.
Default value is 0b.
Bit(s) Name Function