Agilent Technologies N9038A - Page 15

15
Instrument Memory & Volatility
Non-Volatile Memory
5. Config
Memory
(Flash)
8 Mbit
No Yes Contains
measurement and
control software,
which is preloaded
into FPGA during
instrument power-up.
Programmed
before
installation.
A3 Digital IF
Assy.
Contains no
user data.
None.
6. CPU BIOS
(CMOS
NVRAM)
256 Byte
(battery
backed)
No Yes Contains default BIOS
settings to use when
booting the Processor
Assembly.
Programmed by
factory. Settings
can be toggled
by user.
A4 Processor
Assy.
Battery
backed to
maintain
Windows
calendar time.
Contains no
user data.
None.
7. Disk Drive
80 GByte
This drive is
partitioned, as
detailed in
“Disk Drive
Partitioning”
on page 19.
Yes Yes Contains Operating
System, Instrument
Software, Factory
Calibration Data,
Diagnostic software,
Crash recovery image,
user instrument
states, user data files,
user trace data and
any user installed
third party software.
Programmed
before
installation or by
factory/service
center
calibration
procedure
software, or by
upgrade
installation
software. Also
programmed via
operations and
by the user.
A5 Disk Drive
Assy.
Contains user
data.
See Tab le
6-1 on
page 21.
8. License
Storage
Memory
(EEPROM)
512 kbit
No Yes Contains instrument
serial number and
license keys for
measurement
applications. License
keys are encrypted.
Programmed
before
installation and
by installing
new license
keys.
A7 Midplane
Assy.
Contains no
user data.
None.
Table 5-1 Summary of Non-Volatile instrument memory
Memory
Component,
Typ e and Size
Writable During Normal Operation? Data Retained When Powered Off?
Purpose/Contents Data Input
Method
Location in
Instrument
and Remarks
Sanitization
Procedure