User's Manual l MBa7x UM 0101 l © 2020, TQ-Systems GmbH
Page 7
4.
ELECTRONICS
4.1
System components
4.1.1
TQMa7x
4.1.1.1
Overview TQMa7x
i.MX7S / i.MX7D
DDR3L-SDRAM
120-pin connector, 0.8 mm
eMMC
EEPROM
Temperature
sensor
PMIC
PF3000/PF3001
120-pin connector, 0.8 mm
QSPI NOR flash
(optional)
5V
80-pin connector, 0.8 mm
RTC (optional)
Figure 2:
Block diagram TQMa7x
The TQMa7x with the i.MX7 is the central system component. It provides DDR3L SDRAM, eMMC, NOR flash and EEPROM memory.
All voltages required by the TQMa7x are derived from the supply voltage of 5 V.
More information is to be taken from the TQMa7x User's Manual.
The boot behaviour of the TQMa7x can be customised.
The required boot-mode configuration can be set with DIP switches on the MBa7x, see chapter 4.3.5.
4.1.1.2
Connectors X1, X2, X3
The available signals are routed to three connectors on the MBa7x.
Note:
TQMa7x interfaces
Depending on the selected TQMa7x, not all interfaces are available.
Available interfaces are to be taken from the TQMa7x User's Manual and the pinout tables
in chapters 4.1.1.3, and 4.1.1.4.
The pin assignments listed in Table 4 to Table 9 refer to the
BSP provided by TQ-Systems GmbH
The signals at connectors X1 and X2 are identical, some signals at X3 have a different function at the TQMa7S and the TQMa7D.
The differences are indicated through different colour coding.
