Reference Guide

Internal Use - Confidential
Item
Non-
Volatile or
Volatile
Quantity
Reference
Designator
Size of
memory
Type of
memory
(e.g. Flash
PROM,
EEPROM)
Can user programs
or operating
system write data
to it during normal
operation?
What is the
Purpose?
(e.g. boot
code)
How is data
written to
this
memory?
How is
memory write
protected?
How is memory
cleared?
Flash memory
Non-Volatile
1
U_FLASH
128 Mb
Flash
No
Firmware
Common Flash
memory
Interface (CFI)
Hardware
strapping
Not user clearable
Expander FRU
Non-Volatile
1
U_EXP_EEP
ROM
512 Bytes
I2C
EEPROM
No
FRU
I2C interface
via expander
Hardware
strapping
Not user clearable
Backplane FRU
Non-Volatile
1
U_BP_EEPR
OM
256 Bytes
I2C
EEPROM
No
FRU
I2C interface
via iDRAC
Hardware
strapping
Not user clearable
16x2.5" EXP/Backplane
NVSRAM
memory
Non-Volatile
1
U_NVSRAM
1 Mb
Flash
No
FW config data
Common Flash
memory
Interface (CFI)
Hardware
strapping
Not user clearable
Flash memory
Non-Volatile
1
U_FLASH
128 Mb
Flash
No
Firmware
Common Flash
memory
Interface (CFI)
Hardware
strapping
Not user clearable
Expander FRU
Non-Volatile
1
U_EXP_EEP
ROM
512 Bytes
I2C
EEPROM
No
FRU
I2C interface
via expander
Hardware
strapping
Not user clearable