Signal
multiplexing
Module signals
USB Voltage
Regulator
USB
OTG
Figure 3-51. USB Voltage Regulator configuration
Table 3-61. Reference links to related information
Topic Related module Reference
Full description USB Voltage Regulator USB Voltage Regulator
System memory map System memory map
Clocking Clock Distribution
USB controller USB controller
Signal Multiplexing Port control Signal Multiplexing
NOTE
When USB is not used in the application, it is recommended
that the USB regulator VREGIN and VOUT33 pins are tied to
ground through 10kΩ; leaving these pin(s) floating is not
recommended.
3.9.2
SPI configuration
This section summarizes how the module has been configured in the chip. For a
comprehensive description of the module itself, see the module’s dedicated chapter.
Signal
multiplexing
Register
access
SPI
Peripheral
bridge
Module signals
Figure 3-52. SPI configuration
Table 3-62. Reference links to related information
Topic Related module Reference
Full description SPI SPI
Table continues on the next page...
Communication interfaces
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
126 NXP Semiconductors
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