Reference Guide

Item
Non-
Volatile or
Volatile
Quantity
Reference
Designator
Size
Type (e.g.
Flash PROM,
EEPROM)
Can user programs
or operating
system write data
to it during normal
operation?
Purpose?
(e.g. boot
code)
How is
data input
to this
memory?
How is this
memory
write
protected?
How is the memory
cleared?
FRU
Non-
Volatile
1
U1019
256 B
FRU
No
Card
manufacturing
information
Programme
d at ICT
during
production
No write
protect
User cannot clear.
1-Wire
EEPROM
Non-
Volatile
1
U1004
128 B
1-Wire
EEPROM
No
Holds default
controller
properties/setti
ngs
ROC writes
data to this
memory
No write
protect. Not
visible to Host
Processor
User cannot clear.
SBR
Non-
Volatile
1
U1020
8 KB
Serial Boot
ROM
No
Bootloader
Pre-
programme
d before
assembly
No write
protect. Not
visible to Host
Processor
User cannot clear.
Flash
Non-
Volatile
1
U3
16 MB
Flash
No
Card firmware
Pre-
programme
d before
assembly.
Can be
updated
using
Dell/LSI
tools
No write
protect. Not
visible to Host
Processor
User cannot clear.
HBA330
PERC
NVSRAM
Non-
Volatile
1
U1033
128 KB
NVSRAM
No
Configuration
data
ROC writes
configuratio
n data to
NVSRAM
No write
protect. Not
visible to Host
Processor
User cannot clear.