Copyright © 2010 Future Technology Devices International Limited

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Document Reference No.: FT_000055

UB232R USB Mini-B FT232R Evaluation Module Datasheet Version 1.12

Clearance No.: FTDI# 43

Appendix A – FT232R EEPROM Configuration

This FT232R device within the UB232R module contains an EEPROM which contains the USB configuration

descriptors for that device. When the UB232R is plugged into a PC or a USB reset is performed, the PC

will read these descriptors. The default values stored into the internal EEPROM are defined in Table 6.1

Parameter

Value

Notes

USB Vendor ID (VID)

0403h

FTDI default VID (hex)

USB Product UD (PID)

6001h

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

UB232R

Max Bus Power Current

90mA

Power Source

Bus Powered

Device Type

FT232R

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 High 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.

Invert TXD

Disabled

Signal on this pin becomes TXD# if enable.

Invert RXD

Disabled

Signal on this pin becomes RXD# if enable.

Invert RTS#

Disabled

Signal on this pin becomes RTS if enable.

Invert CTS#

Disabled

Signal on this pin becomes CTS if enable.

Table 6.1 Default Internal EEPROM Configuration

The internal EEPROM in the FT232R can be re-programmed over USB using the utility program FT_PROG.

FT_PROG can be downloaded from the www.ftdichip.com. 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 for a free

block of unique PIDs. Contact FTDI support for this service.