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20
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” on
page 32
.
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.
Table 5-3
Base Instrument (All models and options)
Memory
Component,
Type and Size
W
rit
able During
Normal Operatio
n?
Data Retained
When
Powered Off?
Purpose/Contents
Data Input
Method
Location in
Instrument
and Remarks
Sanitization
Procedure
Содержание N5171B
Страница 4: ...4 ...
Страница 6: ...6 Contents ...
Страница 8: ...8 Contacting Agilent Sales and Service Offices ...
Страница 12: ...12 Products Covered by this Document Recommended Software Upgrades ...
Страница 14: ...14 Security Terms and Definitions ...
Страница 38: ...38 Using Secure Display ...
Страница 42: ...42 Security Issues for Certain Firmware Revisions Recovering Erased System Files ...
Страница 46: ...46 Procedure for Declassifying a Faulty Instrument ...