User manual

RPi HUB Module Datasheet

Version 1.0

Document Reference No.: FT_000700 Clearance No.: FTDI# 297

2.3 Functions Overview

A block diagram of RPi HUB Module is illustrated in Figure 1.2.

2X12 Pin 2.54mm Male DIL Connector

FT2232H

USB Type A

Plug

USB

Dual USB

Type A

Connector

GL850

2X12 Pin 2.54mm Male DIL Connector

USB

Channel A

Channel B

Hi-Speed USB

to Dual Channel

Serial Data

Converter

4 Channel

Hi-Speed USB

HUB

Connects to RPi

Connects to

Mouse/Keyboard/

etc.

Figure 1.2 – Block diagram of RPi HUB Module

The block diagram Figure 1.2 illustrates: the RPi HUB Module routes the signals from the GL850G and

FT2232H devices to two 2X12-pin, 0.1”, headers and a dual-port USB type A connector. This allows easy

connection to most PCB header sockets and ribbon cables.

To use the FT2232H connected to a RPi. The RPi operating system by default includes the necessary

virtual com port (VCP) drivers to access both ports of the FT2232H through the TTY.

FTDI D2XX drivers, which allow access to the FT2232H through a DLL, are available for free by clicking

here. For more information on FTDI drivers see: http://www.ftdichip.com/Drivers/D2XX.htm.

The main target application for the RPi HUB Module is that it can be attached to a Raspberry-Pi computer

as an expansion module. The RPi HUB Module expands the interfaces of Raspberry-Pi computer with up

to 3 USB ports or 2 serial ports. More information is available on the Raspberry-Pi computer at

http://www.Raspberry-Pi pi.org/