Security Features & Document of Volatility 11
Instrument Memory & Volatility
MXG (Series A) Memory
3. Firmware
Memory
(Flash)
8 MByte
No Yes Main firmware image Factory
installed or
firmware
upgrade
During normal
operation, this
memory
cannot be
overwritten.
CPU board
(same chip as
main flash
memory, but
managed
separately)
Because this
memory chip
contains 8 MB of
user data and
8 MB of firmware
memory
(described here), a
full-chip erase is
not desirable.
User data areas
are selectively and
completely
sanitized by the
procedure “Erase
and Sanitize All
(Option 006 Only)”
on page 22.
4. Bootrom
Memory
(EEPROM)
8 KByte
No Yes CPU bootup parameters Factory
programmed
CPU board None required (no
user data)
Yes Yes LAN configuration Front panel
entry or
remotely
During normal
operation, this
memory cannot
be overwritten
or erased except
for LAN
configuration.
This read-only
data is
programmed at
the factory.
5. Calibration
Data
(Flash)
256 KByte
No Yes Factory calibration and
configuration data
backup
Factory or
service only
RF Board None required (no
user data)
Table 4-1 Base Instrument (All models and options)
Memory
Component,
Type and Size
Writable During Normal
Operation?
Data Retained When
Powered Off?
Purpose/Contents Data Input
Method
Location in
Instrument and
Remarks
Sanitization
Procedure
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