User's Manual

4.5 Hardware Interfaces

IO interface

Standard Interfaces (exposed on the system enclosure)

– HDMI 1.3 with Type A HDMI receptacle

– USB power input using Micro-USB type B receptacle that carries 5V DC input power

to the board

– Push button switch allows the user to access functions such as pairing with

another W i-Fi device (an Access Point (AP) or a mobile device in P2P mode),

wake from standby, system reset, and restoring factory defaults.

– Tri LED indicates up to seven states, represented by three colors, each constant or

blinking, and off.

– USB 2.0 host port is an internal 4-pin header available (Option)

Wi-Fi: 1x1 Dual-band radio

Antenna

 PIFA Antenna

Flash memory

 Serial NOR Flash: Both 64 Mbit (8 Mbyte) NOR flash and 512 K-bit serial are

supported by the Gemtek WiFi Display firmware. The NOR flash connects to

the CPU via SPI. The CPU can be configured via strapping resistors to read a

boot-loader from SPI NOR flash, then will continue execution by

uncompressing an image from NAND flash.

 NAND Flash: A 1Gbit (128 Mbyte) parallel SLC NAND flash stores the Linux

kernel and application code. Also stores the bootloader, and encrypted

DTCP-IP and HDCP 2.1 keys.

DDR3 memory

 The 16-bit wide DDR3 interface can run up to 648 MHz for speeds

approaching DDR3-1333. Gemtek WiFi Display features a 2Gb (256 Mbyte)

DDR3 DRAM.