FT232R Future Technology Devices Intl Ltd., FT232R Datasheet - Page 27

• Manufacturer Part Number: FT232R
• Manufacturer: Future Technology Devices Intl Ltd.

10. Internal EEPROM Configuration
Following a power-on reset or a USB reset the FT232R will scan its internal EEPROM and read the USB configuration
descriptors stored there. The default values programmed into the internal EEPROM in a brand new device are defined
in Table 18.
Table 18 - Default Internal EEPROM Configuration
The internal EEPROM in the FT232R can be programmed over USB using the utility program MPROG. MPROG can
be downloaded from the
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
FT232R USB UART I.C. Datasheet Version 1.02
Parameter
USB Vendor ID (VID)
USB Product ID (PID)
Serial Number Enabled?
Serial Number
Pull Down I/O Pins in USB Suspend
Manufacturer Name
Product Description
Max Bus Power Current
Power Source
Device Type
USB Version
Remote Wake up
High Current I/Os
Load VCP Driver
CBUS0
CBUS1
CBUS2
CBUS3
CBUS4
Invert TXD
Invert RXD
Invert RTS#
Invert CTS#
Invert DTR#
Invert DSR#
Invert DCD#
Invert RI#
FTDI
FTDI support
website. Version 2.8a or later is required for the FT232R chip. Users who do not have
FT232R USB UART
Bus Powered
PWREN#
See Note
Disabled
Disabled
TXLED#
RXLED#
SLEEP#
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
FT232R
Enabled
Enabled
TXDEN
Value
for this service.
0403h
6001h
90mA
FTDI
0200
Yes
Enabling this option will make the device pull down on the UART interface
A unique serial number is generated and programmed into the EEPROM
Returns USB 2.0 device descriptor 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
Taking RI# low will wake up the USB host controller from suspend.
Default configuration of CBUS2 - Transmit data enable for RS485
Default configuration of CBUS3 - Power enable. Low after USB
Makes the device load the VCP driver interface for the device.
Enables the high drive level on the UART and CBUS I/O pins
Default configuration of CBUS4 - Low during USB suspend.
Default configuration of CBUS0 - Transmit LED drive
Default configuration of CBUS1 - Receive LED drive
lines when the power is shut off (PWREN# is high)
Signal on this pin becomes RXD# if enabled.
Signal on this pin becomes TXD# if enabled.
Signal on this pin becomes DCD if enabled.
Signal on this pin becomes CTS if enabled.
Signal on this pin becomes DTR if enabled.
Signal on this pin becomes DSR if enabled.
Signal on this pin becomes RTS if enabled.
Signal on this pin becomes RI if enabled.
enumeration, high during USB suspend.
© Future Technology Devices International Ltd. 2005
Speed device (480Mb/s).
during device final test.
FTDI default VID (hex)
FTDI default PID (hex)
Notes