Preliminary User's Manual l TQMaX4XxL UM 0001 l © 2022, TQ-Systems GmbH
Page 12
3.2.3.3
NOR-Flash
A NOR-Flash on the TQMaX4XxL is available as further non-volatile memory. The used OSPI0 signals are not available to the
pinout.
•
OSPI0 Interface is connected to the NOR Flash
•
RESETSTATz is used to reset the NOR Flash
•
512 / 1024 / 2048 Mbit
Figure 7: Block diagram NOR-Flash
The NOR-Flash variants Quad SPI Flash and Octal SPI Flash are usable. The TQMaX4XxL supports the following transmission
modes:
Table 8: NOR-Flash modes
Mode
Read
Write
Note
Extended SPI (SDR)
TBD
TBD
3.2.3.4
EEPROMs
I
2
C EEPROMs are provided on the TQMaX4XxL for non-volatile storage. A distinction is made here between:
•
Customer data, freely accessible
•
TQ manufacturing data ( Serial Number, MAC, ...)
All I²C slave address and bus structure are summarized in chapter 3.2.8.7.
3.2.4
Clock supply
The clock supply of the TQMaX4XxL is represented as follows:
Figure 8: Block diagram clock supply
To get the module executable only with a 5V supply, MCU_OSC0_XO / XI was implemented as clock on the module. The
remaining clock inputs can either be derived from the system clock or fed externally via the LGA balls, as an example the
following clocks can be fed externally:
•
SERDES0 Reference Clock
•
External System Clock Inputs
