User's Manual l MBLS1028A UM 0100 l © 2020, TQ-Systems GmbH
Page 5
4.
ELECTRONICS
The TQMLS1028A with its LS1028A CPU is the central system component. It provides DDR4 SDRAM, eMMC, NOR flash and
EEPROM memory. All voltages required by the TQMLS1028A are derived from the supply voltage of 5 V.
The boot behaviour of the TQMLS1028A can be customised. The required boot-mode configuration can be set with DIP switches
on the MBLS1028A, see chapter 4.1.1.3.
4.1
System components
4.1.1
TQMLS1028A
The TQMLS1028A with its LS1028A CPU is the central system component. It provides DDR4 SDRAM, eMMC, NOR flash and an
EEPROM. All TQMLS1028A internal voltages are derived from the 5 V supply voltage. Further information can be found in the
TQMLS1028A User’s Manual. The available signals are routed to the MBLS1028A via two connectors. On the MBLS1028A the
interfaces provided by the TQMLS1028A are routed to industry standard connectors. Furthermore the MBLS1028A provides all
power supplies and configurations required for the operation of the TQMLS1028A. The MBLS1028A supports TQMLS1028A
modules with an LS1017A, LS1027A, LS1018A or LS1028A CPU.
Figure 2:
Block diagram TQMLS1028A
