Tektronix SPG8000A Instructions Manual page 10

Clear and sanitize procedures
Table 2: Nonvolatile memory devices for the SPG8000A base generator (cont.)
Type and
minimum size Function
Flash memory
Configuration of
4 M X 8 FPGA
Flash memory Calibration for the
4 M X 8 module
Stores leap
second
information
Flash memory Unused
4 M X 8
Used to process
ACS9521 vSoC
with internal all PTP messages,
flash holds the
FPGA, Processor
RAM and ROM 1 internal code
image
AT2402D 2 K bit Used to store start
EEPROM 1 up settings for U4
1
Device is installed in all instruments but is operationally enabled only with Option PTP.
Table 3: Nonvolatile memory devices for Option GPS
Type and
minimum size Function
GPS receiver Calculates timing
assembly and position
information
1
During normal instrument operation.
4
Type
of user
information Method of Data input
stored modification method
None None Written by
processor
system from
Main board
The values
Settings Stored
are a during
function of calibration
how the user
Stores leap
calibrates
second
the module
information
and when
obtained by
it was last
satellite
receiving the
GPS signal
None None None
None Code update UI or remote
None None Written
once by
instrument
code
May
contain
user Data input
data 1 method
Yes if Location is
operated in stored when
fixed mode operated in
fixed mode
User
Location Accessible
No
GPS/Genlock/Black
board, U0331
Yes
GPS/Genlock/Black
board, U0332
GPS/Genlock/Black No
board, U0741
PTP board, U3
No
PTP board, U5 No
Location To clear
Mounts above the main Save a position from a
module board and location different from
connects to J12 with the one that was last
a ribbon cable, and to the saved. This will erase
antenna connector on the the previous position
rear panel and save the new one
SPG8000A Declassification and Security Instructions
To clear To sanitize
None
N/A
No customer
information is
stored in this
flash memory
Manually Remove
calibrate the and destroy
module back to the memory
the factory default device or
values destroy the
entire board
Allow the module
to receive satellite
information for
30 minutes to
update the leap
second field
None None
None N/A, No
Customer
information
is stored in
the SoC flash
- just the
code to run
the internal
processor
None N/A, No
Customer
information
is stored in
the EEPROM
To sanitize
Remove and
destroy the
module or
destroy the entire
board