Artesyn MVME2500 ECC Installation and Use (August 2014) - Manual (Page 96)

Memory Maps and Registers
MVME2500-ECC Installation and Use (6806800N30F) 96
NOTE: If a boot failure leads to automatic reboot from the alternate bank and the original bank
is then corrected, power must be cycled in order for BOOT_SPI to continue to provide accurate
status. The following is an example of a proper sequence:
(This example assumes S2-2 is set to select SPI Flash 0 for booting. It also assumes that SPI Flash
0 is corrupted and that SPI Flash 1 is good.)
 Board powers on but fails to boot due to corrupted SPI Flash 0
 Board automatically switches-to and successfully boots-from the good SPI Flash 1
 User replaces the image in SPI Flash 0 with a new good one
 User power-cycles the blade in order to ensure continued accuracy of BOOT_SPI
Field Description
BOOT_BLOCK_A Boot Block Manual Selector Switch
1 - SPI0
0 - SPI1
BOOT_SPI Actual Boot Bank
1 - SP1
0 - SPI0