Preliminary User's Manual l TQMa8Xx UM 0002 l © 2018, TQ-Systems GmbH
Page 6
3.
ELECTRONICS
The information provided in this Preliminary User's Manual is only valid in connection with the tailored boot loader,
which is preinstalled on the TQMa8Xx, and the
BSP provided by TQ-Systems GmbH
Illustration 2:
Block diagram TQMa8Xx
3.1
Interfaces to other systems and devices
3.1.1
Pin multiplexing
When using the CPU signals, the multiple pin configurations by different CPU-internal function units must be taken note of.
NXP provides a tool showing the multiplexing and simplifies the selection and configuration (NXP Pin Mux Tool):
The pin assignment listed in Table 2, Table 3, and Table 4 refers to the corresponding
BSP provided by TQ-Systems GmbH
in combination with the MBa8Xx.
The electrical and pin characteristics are to be taken from the i.MX 8X Data Sheet (1), the i.MX 8X Reference Manual (2),
and the PMIC Data Sheet (4).
Attention: Destruction or malfunction
Depending on the configuration, many i.MX 8X balls can provide several different functions.
Please take note of the information in the i.MX 8X Reference Manual (2), and the i.MX 8X Errata (3)
concerning the configuration of these pins before integration or start-up of your carrier board.
Improper programming by operating software can cause malfunctions, deterioration or
destruction of the TQMa8Xx.
The meanings given in the following tables must be observed:
RFU:
Reserved pins without function.
To support future TQMa8Xx versions, these pins must not be connected.
DNC:
These pins must never be wired and must be left open.
