Chapter 3 77
Basic Operation
Using Security Functions
Calibration
Backup
Memory
(Flash)
512 KB
No Yes factory
calibration/configuration data
backup
no user data
factory or service
only
motherboard
Boards
Memory
(Flash)
512 Bytes
No Yes factory calibration and
information files, code
images, and self-test limits
no user data
factory or service
only
all RF boards, baseband generator, and
motherboard
Micro-
processor
Cache
(SRAM)
3 kB
Yes No CPU data and instruction
cache
memory is managed
by CPU, not user
CPU board, not battery backed.
Table 3-2 Baseband Generator Memory (Options 001/601 and 002/602)
Memory Type
and Size
Writable During
Normal Operation?
Data Retained
When Powered Off?
Purpose/Contents Data Input Method Remarks
Waveform
Memory
(SDRAM)
40−320 MB
Yes No waveforms (including
header and marker
data) and PRAM
normal user operation User data is completely sanitized when you
perform the
Erase and Sanitize function. Not
battery backed.
BBG
Firmware
Memory
(Flash)
32 MB
No Yes firmware image for
baseband generator
firmware upgrade
Table 3-1 Base Instrument Memory (Continued)
Memory Type
and Size
Writable During
Normal Operation?
Data Retained
When Powered Off?
Purpose/Contents Data Input Method Location in Instrument and Remarks
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