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May 2021

Statement of Volatility – Latitude 7220 Rugged Extreme Tablet

CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

The Dell Latitude 7220 Rugged Extreme Tablet contains both volatile and non-volatile (NV) components. Volatile components lose their data

immediately upon removal of power from the component. Non-volatile (NV) components continue to retain their data even after the power has

been removed from the component. The following volatile and NV components are present on the Dell Latitude 7220 Rugged Extreme Tablet

motherboard:

Description

Reference

Designator

Volatility Description

User Accessible for

external data

Remedial Action (action

necessary to lose data)

Embedded controller

U3001

Boot ROM: Non-programmable

boot code

320K of SRAM: EC code loaded

from external SPI Flash

128 Bytes of battery-powered

SRAM: Asset tag, BIOS passwords

N/A

Panel EEDID EEPROM

Part of panel

assembly

Non Volatile memory, 128 bytes.

N/A

System BIOS SPI

Flash

U2800

Non Volatile memory, 32 MB,

System BIOS and Video BIOS for

basic boot operation, PSA (on

board diags), PXE diags., EC code,

and PD firmware

N/A

System Memory –

LPDDR3 memory

U1600, U1601,

U1700, U1701

Volatile memory in OFF state

Components are 16 GB or 32 GB

capacity. Total support 8 GB or

16 GB of system memory

Yes

Power off system

RTC CMOS – BBRAM

(battery backed RTC

RAM)

UCPU1

Non Volatile memory, 256 Bytes.

Stores CMOS information.

N/A.

TPM – Trusted

Platform Module

U4100A Discrete TPM 1.2 and TPM 2.0

support. 24K bytes for user defined

data

No N/A

Hard drive

JSSD1

Non Volatile SSD, various sizes in

GB.

Yes

Low level format.

CAUTION: All other components on the motherboard will lose data once power is removed from the system. Primary power

loss (unplug the power cord and removing the battery) destroys all user data on the memory (DDR4, SKL (2133 MHz), KBL

(2400 MHz)). Secondary power loss (removing the on-board coin-cell battery) destroys system data on the system

configuration and time-of-day information.

Summary of content (2 pages)

PAGE 1
Statement of Volatility – Latitude 7220 Rugged Extreme Tablet CAUTION: A CAUTION indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. The Dell Latitude 7220 Rugged Extreme Tablet contains both volatile and non-volatile (NV) components. Volatile components lose their data immediately upon removal of power from the component. Non-volatile (NV) components continue to retain their data even after the power has been removed from the component.
PAGE 2
In addition, to clarify memory volatility and data retention in situations where the system is put in different ACPI power states the following is provided (those ACPI power states are S0, S1, S3, S4 and S5): S0 state is the working state where the dynamic RAM is maintained and is read/write by the processor. S1 state is a low wake-up latency sleeping state. In this state, no system context is lost (CPU or chip set) and hardware maintains all system contexts.