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future technology devices international ltd (ftdi) unit 1, 2 seaward place, centurion business park, glasgow, g41 1hh, united kingdom tel.: +44 (0) 141 429 2777 fax: + 44 (0) 141 429 2758 e - mail (supp ort): support1@ftdichip.com web: http://www.ftdichip.com neither the whole nor any par t of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder. this product and its documentat ion are supplied on an as - is basis and no warranty as to their suitability for any particular purpose is either made or implied. future techn ology devices international ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. your s tatutory rights are not affected. this product or any variant of it is not intended for use in any medical appliance, device or system in which the failure of the product might reasonably be expected to result in personal injury. this document provides pre liminary information that may be subject to change without notice. no freedom to use patents or other intellectual property rights is implied by the publication of this document. future technology devices international ltd, unit 1, 2 seaward place, centuri on business park, glasgow, g41 1hh , united kingdom. scotland registered number: sc136640 copyright ? 2010 future technology devices international limited future technology devices international ltd. usb hi - speed serial/hub module dat asheet document reference no.: ft_000 331 version 1.2 issue date: 2010 - 10 - 2 8
` copyright ? 2 010 future technology devices international limited 1 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 1 introduction the ft4232h based usb hi - speed serial/ hub module is a usb interface expan sion module target ed at connect ing to the ftdi v2dip x modules to expand the number of interfaces . however, it is not limited to this application. i t can also be used as a hub device or a n ft4232h evaluation module. the module ha s a usb 2 .0 hi - s peed hub chip which support s up to three external downstream usb ports : 2 via a dual usb connector and 1 via the dil connector pins . a ditio n ally , by utiliz ing the ft4232h usb hi - speed four - port bridge chip which handles all the usb signalling and pr otocols , the module can easily support up to 4 flexible interfacing ports . it is ideal for development purposes to quickly prove functionality of adding usb to a target design. figure 1 . 1 - ft4232h serial/ hub module the module utilises t he g l850g usb 2.0 hub controller which provide s a low - cost , and wid e l y used usb 2.0 hub solution , to provide up to 4 downstream usb ports. the gl850g is a single usb h ub solution. the gl850g is a full function solution which sup port both individual/gan g power management modes and two - color (green/a mber) status led. gl850g can be used with an external eeprom (on the module) which can be used to customize pid/vid and other more complicated settings. the ft4232h used on the module i s ftdis 5th generation of usb devices. the ft4232h is a usb 2.0 hi - speed (480mb/s) to uart/mpsse ic. the device features four interfaces that can be configured for asynchronous or synchronous serial communications . two of these interfaces have an option t o be independently configure d via an mpsse engine. this allows the ft4232h to operate as two u art/bit - bang ports plus two mpsse engines which can be used to emulate jtag, spi, i 2 c, bit - bang or other synchronous serial modes. the ft4232h datasheet, ds_ft4232h , is available at http://ftdichip.com/support/documents/datasheets/ics/ds_ft4232h.pdf the block diagram of ft4232h hub module is shown in figure 1.2.
` copyright ? 2 010 future technology devices international limited 2 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 figure 1.2 C block diagram of usb hi - speed serial/ h ub module as the block diagram figure 1.2 shows, t he usb hi - speed serial/ hub module routes the signals from the gl850g and ft4232h devices to two 18 - pin , 0.1, single - row headers an d a dual - port usb a - type socket . this allow s easy connection to most pcb header sockets and ribbon cables. to reduce the connector pin count, only channel a and b fan out all the 8 data signals to the 18 - pin header. for the channel c and channel d, since many designs only use the txd/rxd/cts/rts signals in uart communication , only these 4 data signals are fanned out. this meet s most application requirements. to use the ft4232h connected to a pc , t he ft4232h hub module requires specific usb devic e drivers, available free from http://www.ftdichip.com . the drivers are used to make the ft 4232h on the module appear as a four virtual com port s (vcp). this then allows the user to communicate with the usb interface via a standard pc serial emulation port (tty). another ftdi usb driver, the d2xx driver, can also be used with application software to directly access the ft 4232h on the mini module though a dll. the main target application for the usb hi - speed se rial/ hub module is that it can be attached to the ftdi vnc2 based v2dip x modules (there are 6 d ifferent sizes) as a expansion module. by connecting the usb hi - speed serial/ hub module to the usb socket on the v2dip x modules, the two modules can wor k as a single module to be placed on the bread board. the usb hi - speed serial/ hub module expand s the interfaces of v2dip x module with up to 3 usb ports and 4 serial ports. m ore information is available on the v2dip x modules at http://www.ftdichip.com/products/modules/developmentmodules.htm . 1.1 part numbers part number description ft - mod - 4232hub usb hi - speed_serial/ hub_module
` copyright ? 2 010 future technology devices international limited 3 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 table of contents 1 introduction ................................ ................................ ............................ 1 1.1 part numbers ................................ ................................ ................................ ....... 2 2 typical applications ................................ ................................ .............. 4 2.1 features ................................ ................................ ................................ ............... 4 2.2 driver support ................................ ................................ ................................ ..... 4 3 electrical details ................................ ................................ .................... 5 4 mechanical details ................................ ................................ ................. 9 5 schematic diagram ................................ ................................ ............. 10 6 contact information ................................ ................................ ............. 12 appendix a C ft4232h eeprom configuration ................................ ........................ 10 appendix b C list of figures and tables ................................ ................................ ... 11 l ist of figures ................................ ................................ ................................ ............... 11 list of tables ................................ ................................ ................................ ................ 11 appendix c C revision history ................................ ................................ ................... 12
` copyright ? 2 010 future technology devices international limited 4 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 2 t ypical applications exp ansion module for the ftdi v2dip x modules to expand usb ports and interfaces . rapid usb integration into existing electronic systems. prototyping platform for usb interface on new systems. usb 2.0 hub device to support up to 3 downstream usb ports . usb to muli - port jtag, spi and i 2 c interfaces (two multi - protocol synchronous serial engines C mpsse C available with the ft4232h) usb to multi - port asynchronous serial interfaces (up to 4 ports available) . 2.1 features the usb hi - speed serial/ hub module has the following feature s : general: usb 2.0 hi - speed compatible one standard type a usb header to connect to the host usb hi - speed ft4232h device for usb - serial/bitbang communications. entire usb protocol handled by usb module usb 2.0 hi - s peed hub controlle r integrated to support up to 3 downstream usb ports usb hub control ler and ft4232h are usb bus powered C external power input pin available to suppl y external downstream usb ports . support for usb suspend and resume 4 asyn chronous serial interfaces available which include 2 independent mpsse engines. defaults to 4 rs232 interfaces. asynchronous serial data transfer rates from 300 baud to 12 mbaud at ttl levels synchronous serial (mpsse) data rates of up to 30mbps on jtag, spi and i 2 c one dual - port usb a socket and 0.1 green/amber status led for downstream usb port 2&3. led indicating power supply to external downstream usb ports onboard eeprom 9 3 lc56 for ft4232h configu ration uhci / ohci / ehci host controller compatible 2.2 driver support royalty free virtual com port (vcp) drivers for... windows 2000, server 2003, xp server 2008 windows xp and xp 64 - bit windows vista and vista 64 - bit windows 7 and 7 64 - bit windows xp emb edded windows ce 4.2, 5.0, 5.2 and 6.0 mac os - x linux (2.6.9 or later) royalty free d2xx direct drivers (usb drivers + dll s/w interface) windows 2000, server 2003, server 2008 windows xp and xp 64 - bit windows vista and vista 64 - bit windows 7 and 7 64 - bit windows xp embedded windows ce 4.2, 5.0, 5.2 and 6.0 linux (2.4 or later) and linux x86_64 the drivers listed above are all available to download for free from www.ftdichip.com .
` copyright ? 2 010 future technology devices international limited 5 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 3 electrical details the electrical details and connections of the usb hi - speed serial/ hub module are shown in figure 3.1 and table 3.1 C table 3. 3 . figure 3 . 1 usb hi - speed serial/ hub module electrical connections (top view) usb hi - speed serial/ hub module has 4 connectors on the board. the detailed description s of th e se connectors are list ed in table 3.1. reference designator description cn 1 usb a signal header to connect to the host port cn 2 dual - port usb a socket connect s to 2 downstream usb devices cn 3 0.1 table 3 . 1 usb hi - speed serial/ hub module connect ors
` copyright ? 2 010 future technology devices international limited 6 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 the pin descriptions of cn3 and cn4 are given in table 3.2 and table 3.3. connector pin name description cn 3 - 1 nc no t connected pin cn 3 - 2 v cc_bus usb +5v vbus po wer pin (output) from upstream usb port cn 3 - 3 5v +5v power pin (input) to supply downstream usb ports cn 3 - 4 dd0 ft4232h dd0 pin cn 3 - 5 dd1 ft4232h dd1 pin cn 3 - 6 dd2 ft4232h dd2 pin cn 3 - 7 dd3 ft4232h dd3 pin cn 3 - 8 gnd 0v power pin cn 3 - 9 ad0 ft4232h ad 0 pin cn 3 - 10 ad 1 ft4232h ad 1 pin cn 3 - 11 ad 2 ft4232h ad 2 pin cn 3 - 12 ad3 ft4232h ad 3 pin cn 3 - 13 ad 4 ft4232h ad 4 pin cn 3 - 14 ad5 ft4232h ad5 pin cn 3 - 15 ad 6 ft4232h ad 6 pin cn 3 - 16 ad7 ft4232h ad7 pin cn 3 - 17 dp4 usb hub downstream port 4 d+ signal pin c n 3 - 18 dm4 usb hub downstream port 4 d - signal pin table 3 . 2 usb hi - speed serial/ hub module connection C cn 3
` copyright ? 2 010 future technology devices international limited 7 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 connector pin name description cn 4 - 1 nc not connected pin cn 4 - 2 pwren# ft4232h pwren# pin cn 4 - 3 data ft4232h eedata pin cn 4 - 4 cs ft4232h eecs pin cn 4 - 5 clk ft4232h eeclk pin cn 4 - 6 gnd 0v power pin cn 4 - 7 cd 3 ft4232h cd 3 pin cn 4 - 8 cd 2 ft4232h cd3 pin cn 4 - 9 cd 1 ft4232h cd 1 pin cn 4 - 10 cd 0 ft4232h cd 0 pin cn 4 - 11 b d7 ft4232h b d7 pin cn 4 - 12 b d 6 ft4232h b d 6 pin cn 4 - 1 3 b d 5 ft4232h b d 5 pin cn 4 - 14 b d 4 ft4232h b d 4 pin cn 4 - 15 b d 3 ft4232h b d 3 pin cn 4 - 16 b d 2 ft4232h b d 2 pin cn 4 - 17 b d 1 ft4232h b d 1 pin cn 4 - 18 b d 0 ft4232h b d 0 pin table 3 . 3 usb hi - speed serial/ hub module connection C cn 4 in most cases, the ft4232h pin is connected directly to the associated pin on cn 3 or cn 4 . t here are also several leds available on the ft4232h hub module to indicate the status of power and usb hub port. detailed functions of leds are described in table 3.4. led reference designator color function description d 1 yellow power to supply external downstream usb ports d 2 amber overcurrent status of downstream usb port 2 d 3 green transfer status of downstream usb port 2 d 4 green transfer status of downstream usb po rt 3 d5 amber overcurrent status of downstream usb port 3 figure 3.4 functions of status leds on the module
` copyright ? 2 010 future technology devices international limited 8 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 power supply of ft4232h hub module the gl850g and the ft4232h ics and their related circuits on the usb hi - speed serial/ hub module are directly powered by usb bus power. the estimated current consumed by the cirucuit s of module is about 100 - 300ma depending on the application. it is important that the user en sure s that the host can supply this current via usb. the maximum total current con sumed by the external usb devices on downstream port 2 and 3 is 1a. if the total current exceed 1a, the fuse on the usb hi - speed serial/ hub module will be disconnected. if this occurs then led s d2 and d5 on the module will illuminate to indicate ov er - current status. t h ere are two options to supply power to external downstream usb devices connected to ports 2 and 3. 1. use usb bus power to supply downstream ports: connect 5v to vcc_bus (cn3, pin 3 to cn3, pin 2). this connection uses the power from ups tream usb bus to supply the downstream usb ports of the usb hub. with this connection, user should make sure that the usb host can supply enough current to the external usb devices C in addition to the current required by the module . 2. use external power to supply downstream ports: connect 5v (cn3, pin 3) to external +5v dc power supply. this connection take s the power from external power to supply the downstream usb ports of usb hub. user s should also make sure that t he external power can supply enough curre nt required by the external devices . note: it is recommened to select the mode of operation before connecting the usb hi - speed serial/ hub module.
` copyright ? 2 010 future technology devices international limited 9 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 4 mechanical details the mechanical details of the usb hi - speed serial/ hub module are shown in figure 4 . 1 : figure 4 . 1 usb hi - speed serial/ hub module dimensions all dimensions are in millimetres. the headers cn 3 and cn 4 are mounted to the b ottom of the pcb. the overall height below the pcb is 11 .5mm, with a body which exposes 9 .0mm of the pins. the pins are 0.025 inch square. c n 2 g l 8 5 0 g f t 4 2 3 2 h f t 4 2 3 2 h h u b m o d u l e 2 . 5 4 1 3 . 2 7 1 7 . 0 9 1 6 . 2 1 7 5 . 0 4 1 2 . 0 6 2 3 . 3 7 1 8 . 7 4 . 2 7 1 5 . 8 9 . 0 1 . 5 8 4 . 8 2 2 8 . 9
` copyright ? 2 010 future technology devices international limited 10 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 5 schematic diagram figure 5 . 1 usb hi - speed serial/ hub mo dule schematic C page 1
` copyright ? 2 010 future technology devices international limited 11 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 figure 5 . 2 usb hi - speed serial/ hub module schematic C page 2
` copyright ? 2 010 future technology devices international limited 12 document reference no.: ft_000331 usb hi - speed serial/hub module version 1.2 clearance no.: ftdi# 174 6 contact information head office C glasgow, uk future technology devices international limited unit 1, 2 seawa rd place, centurion business park glasgow, g41 1hh united kingdom tel: +44 (0) 141 429 2777 fax: +44 (0) 141 429 2758 e - mail (sales) sales1@ftdichip.com e - mail (support) support1@ftdichip.com e - mail (general enquiries) admin1@ftdichip.com web site url http://www.ftdichip.com web shop url http:// www.ftdichip.com branch office C taipei, taiwan future technology devices international limited (taiwan) 2f, no. 516, sec. 1, neihu road taipei 114 taiwan , r.o.c. tel: +886 (0) 2 8797 1330 fax: +886 (0) 2 8751 9737 e - mail (sales) tw.sales1@ftdichip.com e - mail (support) tw.support1@ftdichip.com e - mail (general enquiries) tw.admin1@ftdichip.com web site url http://www.ftdichip.com branch office C hillsboro, oregon, usa future technology devices international limited (usa) 7235 nw evergreen parkway, suite 600 hillsboro, or 97123 - 5803 us a tel: +1 (503) 547 0988 fax: +1 (503) 547 0987 e - mail (sales) us.sales@ftdichip.com e - mail (support) us.support@ftdichip.com e - mail (general enquiries) us.admin@ftdichip.com web site url http://www.ftdichip.com branch office C shanghai, china future technology devices international limited (china) room 408, 317 xia nxia road, changning district, shanghai, p.r. china tel: + 86 (21) 62351596 fax: +86 (21) 62351595 e - mail (sales) cn.sales@ftdichip.com e - mail (support) cn.s upport@ftdichip.com e - mail (general enquiries) cn.admin@ftdichip.com web site url http://www.ftdichip.com distributor and sales representatives please visit the sales network page of the ftdi web site for the contact details of our distributor(s) and sales representative(s) in your country.
copyright ? 2010 future technology devices international limited 10 document reference no.: ft_000331 ft4232h datasheet version 1.2 clearance no.: ftdi# 174 appendix a C ft4232h eeprom configuration the usb hi - speed serial/ hub module utilizes an eeprom which contains the us b configuration descriptors for the ft4232h. when the mini module is plugged into a pc or a usb reset is performed, the pc will read these descriptors. the default values stored into the eeprom are defined in table 6 . 1 . parameter value notes usb vendor id (vid) 0403h ftdi default vid (hex) usb product ud (pid) 6011 h ftdi default pid (hex) serial number enabled? yes serial number see note a unique serial number is generated and programmed into the eeprom during device final test. pull down i/o pins in usb suspend disabled enabling this option will make the device pull down on the uart interface lines when the power is shut off (pwren# is high). manufacturer name ftdi product description ft4232h hub module max bus power current 500 ma power source bus powered device type ft4232 usb version 0200 returns usb 2.0 device description to the host. note: the device is be a usb 2.0 full speed device (12mb/s) as opposed to a usb 2.0 hi - speed device (480mb/s). remote wake up enabled taking ri# low will wake up the usb host controller from suspend. high current i/os enabled enables the high drive level on the uart and cbus i/o pins. load vcp driver disabled makes the device load the vcp driver interface for the device. table 6 . 1 default internal eeprom configuration the eeprom for ft4232h chip on the usb hi - speed serial/ hub module can be re - programmed over usb using the utility program ft_prog . ft_prog can be downloaded from http://www.ftdichip.com/support/utilities.htm . users who do not have their own usb vendor id but who would like to use a unique product id in their design can apply to ftdi fo r a free block of unique pids. contact ftdi support for this service.
copyright ? 2010 future technology devices international limited 11 document reference no.: ft_000331 ft4232h datasheet version 1.2 clearance no.: ftdi# 174 appendix b C list of figures and tables list of figures figure 1.1 - ft4232h serial/hub module ................................ ................................ ................... 1 figure 3.1 usb hi - speed serial/hub module electrical connections (top view) ................................ ..... 5 figure 4.1 usb hi - speed serial/hub module dimensions ................................ ................................ ... 9 f igure 5.1 usb hi - speed serial/hub module schematic C page 1 ................................ ...................... 10 figure 5.2 usb hi - speed serial/hub module schematic C page 2 ................................ ...................... 11 list o f tables table 3.1 usb hi - speed serial/hub module connect ors ................................ ................................ ..... 5 table 6.1 default internal eeprom configuration ................................ ................................ ............ 10
copyright ? 2010 future technology devices international limited 12 document reference no.: ft_000331 ft4232h datasheet version 1.2 clearance no.: ftdi# 174 appendix c C revision history version 1.0 first release 13 th october 20 10 version 1.1 added part number 21 st october 20 10 version 1.2 c hanged title from ft4232h hub module to usb hi - speed serial/hub module corrected fig. 1.2 28 th october 2010 version 1. 2 r eleased rev 1.2 2 8 st october 20 10

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