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Instrument Memory & Volatility
ESG and PSG Memory
2. BBG
Firmware
Memory
(Flash)
32 MByte
No
Yes
Firmware image for
baseband generator
Firmware
upgrade
None required
(no user data)
3. Coprocessor
Memory
(SRAM)
32 MByte
Yes
No
Operating memory of
baseband
coprocessor CPU
During
normal
operation,
some user
information,
such as
payload data,
can remain
in the
memory.
This memory
is used during
normal
baseband
generator
operation. It is
not directly
accessible by
the user.
Not battery
backed.
Turn off
instrument
power.
4. Buffer
Memory
(SRAM)
5 x 512 KByte
No
No
Support buffer
memory for ARB and
real-time applications
Normal user
operation
This memory
is used during
normal
baseband
generator
operation. It is
not directly
accessible by
the user.
Not battery
backed.
Turn off
instrument
power.
Table 5-6
Vector Models with Baseband Generator (E4438C/E8267D with Options 601 or 602)
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 ...