Connector Pin Assignments and Signal Descriptions
=================================================

Signal names beginning with a “#” symbol indicates that the active, or
asserted state, occurs when the signal is at a low voltage level. When
“#” is not present, the signal is asserted when at a high voltage level.
Differential pairs are indicated by trailing 'P' and 'N' for the
positive or negative signal.

The following terminology is used to describe columns for the tables
located below.

======== ===============
**Term** **Describtion**
======== ===============
I        Input
O        Output
I/O      Bi-directional Input/Output Pin
VDDIO    I/O type depends on the VDDIO voltage of the module
3V3      I/O type: CMOS 3.3V
5V       I/O type: CMOS 3.3V to 5V
power    Power supply pin
USB      Universal Serial Bus differential pair signals In compliance with the Universal Serial Bus Specification 2.0
ETN      Ethernet Media Dependent Interface differential pair signals. In compliance with IEEE 802.3ab 100Base-T Ethernet Specification.
NC       Not Connected
PU       Pull-up resistor
======== ===============

.. toctree::
   :glob:

   PinAssignments/PowerSupply
   PinAssignments/ResetBootmode
   PinAssignments/RTCPowerButton
   PinAssignments/EthernetSignals
   PinAssignments/USB
   PinAssignments/I2C
   PinAssignments/PWM
   PinAssignments/CSPI
   PinAssignments/SDIO
   PinAssignments/UARTs
   PinAssignments/Keypad
   PinAssignments/DigitalAudioPorts
   PinAssignments/CMOS
   PinAssignments/2ndCMOS
   PinAssignments/LCD
   PinAssignments/LVDS
   PinAssignments/CAN
   PinAssignments/PCI
   PinAssignments/GPIO
   PinAssignments/TV