Preliminary User's Manual l TQMLS1028A UM 0001 l © 2019, TQ-Systems GmbH
Page 3
1.8
Naming of signals
A hash mark (#) at the end of the signal name indicates a low-active signal.
Example: RESET#
If a signal can switch between two functions and if this is noted in the name of the signal, the low-active function is marked with
a hash mark and shown at the end.
Example: C / D#
If a signal has multiple functions, the individual functions are separated by slashes when they are important for the wiring.
The identification of the individual functions follows the above conventions.
Example: WE2# / OE#
1.9
Further applicable documents / presumed knowledge
•
Specifications and manual of the modules used:
These documents describe the service, functionality and special characteristics of the module used (incl. BIOS).
•
Specifications of the components used:
The manufacturer's specifications of the components used, for example CompactFlash cards, are to be taken note of.
They contain, if applicable, additional information that must be taken note of for safe and reliable operation.
These documents are stored at TQ-Systems GmbH.
•
Chip errata:
It is the user's responsibility to make sure all errata published by the manufacturer of each component are taken note of.
The manufacturer’s advice should be followed.
•
Software behaviour:
No warranty can be given, nor responsibility taken for any unexpected software behaviour due to deficient components.
•
General expertise:
Expertise in electrical engineering / computer engineering is required for the installation and the use of the device.
The following documents are required to fully comprehend the following contents:
•
MBLS1028A circuit diagram
•
MBLS1028A Preliminary User's Manual
•
LS1028A Data Sheet
•
U-Boot documentation:
www.denx.de/wiki/U-Boot/Documentation
•
PTXdist documentation:
•
TQ-Support Wiki:
support.tq-group.com/doku.php?id=en:arm:tqmls1028a
2.
BRIEF DESCRIPTION
This Preliminary User's Manual describes the TQMLS1028A, and refers to some software settings.
A certain TQMLS1028A derivative does not necessarily provide all features described in this Preliminary User's Manual.
This Preliminary User's Manual does also not replace the NXP CPU Reference Manuals.
The information provided in this Preliminary User's Manual is only valid in connection with the tailored boot loader,
which is preinstalled on the TQMLS1028A, and the BSP provided by TQ-Systems GmbH. See also chapter 6.
The TQMLS1028A is a universal Minimodule based on the NXP Layerscape CPUs LS1028A / LS1018A / LS1027A / LS1017A.
These Layerscape CPUs are Single, or Dual Cortex
®
A72 with QorIQ technology.
The TQMLS1028A extends the TQ-Systems GmbH product range and offers an outstanding computing performance.
A suitable CPU derivative (LS1028A / LS1018A / LS1027A / LS1017A) can be selected for each requirement.
All essential CPU pins are routed to the TQMLS1028A connectors.
There are therefore no restrictions for customers using the TQMLS1028A with respect to an integrated customised design.
Furthermore all components required for the CPU to function like DDR4 SDRAM, eMMC, power supply and power management
are integrated on the TQMLS1028A. The main TQMLS1028A characteristics are:
•
CPU derivatives LS1028A / LS1018A / LS1027A / LS1017A
•
DDR4 SDRAM, ECC as an assembly option
•
eMMC NAND Flash
•
QSPI NOR Flash
•
Single supply voltage 5 V
•
On-board RTC / EEPROM / temperature sensor
The MBLS1028A also serves as carrier board and reference platform for the TQMLS1028A.
