Clear and Sanitize Procedures
Memory Devices
The following tables list the volatile and nonvolatile memory devices in the standard instrument and listed options:
Table 1: Volatile memory devices
Type and min.
size
Function
Type of user
information
stored
Backed up
by battery
Method of
modi
fi
cation
Data input
method
Location
User
accessible
To clear
To sanitize
SDRAM,
512K X 32
Acquisition memory
for holding
and processing
waveforms, and
processor system
RAM.
Both user data and
user settings
No
Indirect
Firmware
operations,
user input
Main
Acquisition
board
No
Remove power from
the instrument for at
least 20 seconds.
Remove power from
the instrument for at
least 20 seconds.
SRAM, 128K X 8
Shared memory
between the
acquisition system
and the USB
processor.
Both user data and
user settings
No
Indirect
Firmware
operations
Main
Acquisition
board. TDS
models only.
No
Remove power from
the instrument for at
least 20 seconds.
Remove power from
the instrument for at
least 20 seconds.
Real-time clock,
which contains
battery backed-up
memory
Holds date/time data
None
Yes
Indirect
User input
Main
Acquisition
board.
No
Remove the battery
from the board.
Remove the battery
from the board.
USB 2.0 OTG
host/peripheral
controller, 8K X 16
RAM
Contains USB
controller program
and data memory.
None
No
Indirect
Firmware
operations
Main
Acquisition
board. TDS
models only.
No
Remove power from
the instrument for at
least 20 seconds.
Remove power from
the instrument for at
least 20 seconds.
SRAM, 64K X16
Data memory for the
USB processor.
None
No
Indirect
Firmware
operations
Main
Acquisition
board. TDS
models only.
No
Remove power from
the instrument for at
least 20 seconds.
Remove power from
the instrument for at
least 20 seconds.
2
TDS1000B/TDS2000B, TDS1000C-EDU/TDS2000C, and TPS2000B Series
