Dell PowerEdge R910 Technical Manual page 55

Dell
Broadcom 8727 PHY (Physical Layer) EEPROM (applicable to only 10Gb I/O riser)
Size:
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
How is data input to this memory?
How is this memory write protected?
Remarks
10 Gb I/O riser CPLD (applicable to only 10Gb I/O riser when present)
Size:
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
How is data input to this memory?
How is this memory write protected?
Remarks
Dell PERC H700i storage controller CPLD/Flash/NVSRAM etc. (if applicable)
Size:
Type [Flash PROM, EEPROM]:
Can user programs or operating system write
data to it during normal operation?
Does it retain data when powered off?
Purpose? [boot code]
Dell PowerEdge R910 Technical Guide
for 57711 network controller.
32KB
Serial EEPROM
No
Yes
Stores the PHY firmware
Data is preprogrammed or update using Dell
LOM FW update utility. System loaded with
arbitrary data in firmware memory will not have
the 10Gb SFP+ network ports operational
Software write protected
10Gb I/O riser is optional
64 Macrocells
CPLD
No
Yes
Stores the standby power delivery routing to
10Gb network controller and its PHY
Data is preprogrammed at board build
Software write protected
10Gb I/O riser is optional
FRU: 256 Bytes
Boot ROM: 8 KB
Flash: 8 MB
CPLD: 128 Macrocells
NVSRAM: 128 KB
iButton key EEPROM: 128 Bytes
Battery-Backed Cache: 512 MB
FRU, EEPROM, Flash, CPLD, Non-volatile SRAM
and a 1-wire EEPROM
No
Yes
Flash stores the storage controllers firmware
CPLD controls the power sequencing & battery
backup logic
NVSRAM stores the controller configuration
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