Technical data

16
Instrument Memory & Volatility
MXG (Series B) & EXG Memory
MXG (Series B) & EXG Memory
The following tables describe each memory type used in the base instrument and optional baseband
generator.
Table 5-1 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
1. Main Memory
(DRAM)
512 MByte
Yes No Firmware operating
memory.
Operating
system
CPU board,
not battery
backed.
Volatile
memory.
Turn off
instrument
power.
2. Main Memory
(Flash)
512 MByte,
partitioned as
follows:
200 MByte: Boot
(Main firmware
image, Operating
system)
50 MByte: System
(Calibration/
Configuration)
1MByte: Secure
Storage
180 MByte: User
Yes Yes Factory calibration
and configuration
data
User file system
a
,
which includes
flatness calibration,
instrument states,
and sweep lists
Firmware
upgrades and
user-saved
data
a
CPU board Boot Area: no
user data
User and
Secure
Storage
Areas: see
“Erase and
Sanitize All”
on page 32.
3. Front Panel
Memory
(Flash)
24 KByte
No Yes Front panel keyboard
controller firmware
Operating
system
Front Panel
board
None
required (no
user data)