UMFT231XE Datasheet, PDF (15/18 Pages) Future Technology Devices International Ltd. – UMFT231XE USB to Full-Handshake UART Development Module

UMFT231XE
Version 1.0
Document Reference No.: FT_000652 Clearance No.: FTDI# 294
8 Internal MTP ROM Configuration
Following a power-on reset or a USB reset the FT231X will scan its internal MTP ROM and read the USB
configuration descriptors stored there. The default values programmed into the internal MTP ROM in the
FT231XQ used on the UMFT231XE are shown in Table 8.1.
Parameter
Value
Notes
USB Vendor ID (VID)
0403h
FTDI default VID (hex)
USB Product UD (PID)
6015h
FTDI default PID (hex)
Serial Number Enabled?
Yes
Serial Number
See Note
A unique serial number is generated and programmed into
the MTP ROM during final test of the UM232R module.
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
UMFT231XE
Max Bus Power Current
90mA
Power Source
Bus Powered
Device Type
FT231X
USB Version
0200
Returns USB 2.0 device description to the host. Note: The
device is 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
Disabled
Enables the high drive level on the UART and CBUS I/O
pins.
Load VCP Driver
Enabled
Makes the device load the CVP driver interface for the
device.
CBUS0
GPIO
CBUS1
GPIO
CBUS2
GPIO
CBUS3
GPIO
Invert UART
Disabled
Signal on this pin becomes TXD# if enable.
Table 8.1 – Default Internal MTP ROM Configuration
The internal MTP ROM in the FT231X can be 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 ([e-mail]) for this service, also see TN_100 and
TN_101.
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