Reference Guide

Dell - Internal Use - Confidential
Item
Type (e.g. Flash PROM, EEPROM)
Can user
programs or
operating system
write data to it
during normal
operation?
Purpose? (e.g. boot
code)
PCIe Switch Board
CPLD
Integrated Flash
No
Board logic
controller
Switch EEPROM
SPI Serial EEPROM
No
PCIe Switch
configuration
FRU
Two-wire Serial EEPROM
No
FRU
Fan Only Board
CPLD
Integrated Flash
No
Board logic
controller
FRU
Two-wire Serial EEPROM
No
FRU
1G IO Module
PHY EEPROM
SPI Serial EEPROM
No
PHY Configuration
PSOC
Integrated Flash
No
Power/Reset
Control
10G IO Module
PHY EEPROM
SPI Serial EEPROM
No
PHY Configuration
Microcontroller FW
Integrated Flash
No
Phy initialization
and management
PSOC
Integrated Flash
No
Power/Reset
Control
x16 PCIe Mezzanine
Switch EEPROM
SPI Serial EEPROM
No
Switch
configuration
FRU
Two-wire Serial EEPROM
No
FRU
Item
How is data input to this memory?
How is this memory write protected?
PCIe Switch Board
CPLD
Updated using Mainboard.bin file
uploaded through CMC
Only CMC can access and uses special
CRCs in bin file to validate
Switch EEPROM
SPI interface via CMC
Hardware Strapping
FRU
I2C interface via CMC
Hardware Strapping