3. 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