Reference Guide

01/2020
Purpose
Storage of VGA EDID
How is data input to this
memory?
VGA EDID is embedded in the firmware, and
copied to EEPROM after F/W programming.
(or via customized EDID tool)
How is this memory write
protected?
Hardware and software write protected
System Flash ROM
MXIC MX25L4026EM1I-12G
Size
4Mbit
Type [e.g. Flash PROM,
EEPROM]
Serial flash memory
Volatility
Non-volatile
Can user programs or
operating system write data
to it during normal
operation?
No
Purpose
To store firmware
How is data input to this
memory?
Loading flash memory requires a vendor-provided
tool and firmware.
How is this memory write
protected?
Software write protected
CAUTION: All other components on the system board lose data if power is removed from the system. Primary
power loss (unplugging the power cord) destroys all user data.
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