User's Manual

18 GPIO22/D+ Digital I/O 47 or 43
GPIO or USB Data
Plus
(2)
GPIO or USB Data
Plus
(2)
19 GPIO23/D- Digital I/O 46 or 42
GPIO or USB Data
Minus
(2)
GPIO or USB Data
Minus
(2)
20 GPIO24 Digital I/O 41 GPIO
(3)
GPIO
(3)
21 RESETN_EXT
Digital
Input
37
RESET signal
active low
(4)
RESET signal
active low
(4)
22 GND GND
Paddle
(57)
GND GND
23 VDD
Supply
Input
31, 45, 54
+3.3V input supply
voltage
+3.3V input supply
voltage
24 VDD
Supply
Input
31, 45, 54
+3.3V input supply
voltage
+3.3V input supply
voltage
Notes:
(1) Pin 17 is hardware configured as GPIO15/ADAT2 by default; utilizing this pin as a CEN requires a different
stuffing option.
(2) Utilizing pins 18 and 19 as USB D+ and D- requires the firmware to Tri-state GPIOs 22 and 23.
(3) Pin 20 (GPIO24) can be utilized to implement a “Data Waiting” interrupt signal for I2C and SPI Slave data
communication.
(4) Pin 21 (RESET_EXT) can be pulled to GND with a switch or an open drain/collector type device to provide a
hard reset signal to the AV5100. This pin is pulled up to VDDIO (3.3V) internally in the AV5100 and should
not be actively driven high.