Document Reference No.: FT_000430
USB 2.0 HI-SPEED TO UART CABLE Datasheet
Version 1.1
Clearance No.: FTDI# 222
Appendix A - Cable EEPROM Configuration
Each C232HD cable is controlled by the FTDI FT232H IC. This cable contains an EEPROM which contains
the USB configuration descriptors for that device. When the cable 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 the following table.
Parameter
USB Vendor ID (VID)
USB Product UD (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
Invert TXD
Invert RXD
Invert RTS#
Invert CTS#
Value
0403h
6014h
Yes
See Note
Disabled
FTDI
See note
500mA
Bus Powered
FT232H
0200
Disabled
Enabled
Enabled
Disabled
Disabled
Disabled
Disabled
Notes
FTDI default VID (hex)
FTDI default PID (hex)
A unique serial number is generated and programmed into
the EEPROM during device final test.
Enabling this option will make the device pull down on the
UART interface lines when the power is shut off (PWREN#
is high).
Product description depends on the cable. The following
lists a the Product descriptions for each different cable.
C232HD-DDHSP-0
C232HD-EDHSP-0
Includes power to operate the FT232H plus the cable
output current.
Returns USB 2.0 device description to the host.
Note: The device is a USB 2.0 Hi-Speed device (480Mb/s).
Enables the high drive level on the UART and CBUS I/O
pins.
Makes the device load the VCP driver interface for the
device.
Signal on this pin becomes TXD# if enable.
Signal on this pin becomes RXD# if enable.
Signal on this pin becomes RTS if enable.
Signal on this pin becomes CTS if enable.
Default Internal EEPROM Configuration
The cable EEPROM in the cable can be re-programmed over USB using the utility program FT_PROG. Both
can be downloaded from www.ftdichip.com.
Copyright ? 2012 Future Technology Devices International Limited
15
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