Reference Guide

Item
Non-Volatile
or Volatile
Qty
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?
Left Control Panel (LED only)
LED Controller
Non-Volatile
Non-Volatile
Volatile
1
U200
8K 64
512KB
EEPROM
EEPROM
SRAM
No
LED controller boot
and run time code
I2C interface via
active MM
Active MM control only
Left Control Panel (LCD only)
LCD Controller
Non-Volatile
Non-Volatile
Volatile
1
U_MCU1
2048KB
160KB
512KB
EEPROM
EEPROM
SRAM
No
LCD Boot mode
and Main
Application
Boot loader – Off
line Programmer.
Main Application –
Via EC over I2C
EC Active Control Only
Touch
Controller
Non-Volatile
Volatile
1
U_TouchPad
1
128KB
16KB
EEPROM
RAM
No
Touch FW
Touch
Configuration
Touch FW
programmed by
Vendor,
Configuration
Programmed
Offline via I2C
Factory Programmed.
Field Upgrade via LCD Controller
Flash
Non-Volatile
1
U_Flash1
8MB
NOR
No
Extended LCD
Controller Memory
Additional Storage
for LCD
LCD MCU1 Only
Left Control Panel (LCD w/Quick Sync)
Wi-Fi/BLE
Controller
Non-Volatile
Volatile
1
U_MCU1
2048KB
384KB
Flash
SRAM
No
Wi-Fi/BLE
Controller
Boot loader – Off
line Programmer.
Main Application –
Via EC over I2C
Factory Programmed and iDRAC/EC
Active Control Only
Power Supply
Micro-controller
Non-Volatile
2
P/N H7TFG:
IC805 and
IC703
P/N 1W1TN:
U300 and
U502
Up to
64KB
Flash PROM
and EEPROM
No
Report PSU
information and
control firmware
The data is
flashed via Dell
Update Package
(DUP)
Using signature and manufacture key to
write- protect the memory