Document Reference No.: FT_000030
Vinculum VNC1L Embedded USB Host Controller IC Datasheet Version 2.01
Clearance No.: FTDI# 50
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Typical Applications
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Add USB host capability to embedded
products.
Interface USB Flash drive to
MCU/PLD/FPGA.
USB Flash drive to USB Flash drive file
transfer interface.
Digital camera to USB Flash drive or other
USB slave device interface.
PDA to USB Flash driver or other USB slave
device interface.
MP3 Player to USB Flash drive or other USB
slave device interface.
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USB MP3 Player to USB MP3 Player.
Mobile phone to USB Flash drive or other
USB slave device interface.
GPS to mobile phone interface.
Instrumentation USB Flash drive or other
USB slave device interfacing.
Data-logger USB Flash drive or other USB
slave device interface.
Set Top Box - USB device interface.
GPS tracker with USB Flash disk storage.
1.1 Firmware Support and VNC1L Programming
There are currently 6 standard firmware versions available for VNC1L:
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VDAP Firmware: USB Host for single Flash Disk and General Purpose USB peripherals. Selectable
UART, FIFO or SPI interface command monitor.
VDPS Firmware: USB Host for single Flash Disk and General Purpose USB peripherals. USB Slave
port connection for connecting to host PC. Selectable UART, FIFO or SPI interface command
monitor.
VDFC Firmware: USB Host for two Flash Disks, Selectable UART, FIFO or SPI interface command
monitor.
VMSC1 Firmware: USB Host for single Flash Disk and General Purpose USB peripherals. Audio
playback command extensions for VLSI VS1003 series MP3 decoder ICs. Selectable UART, FIFO
or SPI interface command monitor port.
VCDC Firmware: USB Host for automatic connection to USB Communications Class Devices. UART
interface command monitor.
VDIF Firmware: USB Host for single Flash Disk and General Purpose USB peripherals. Selectable
UART, FIFO, SPI or USB interface command monitor.
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General Purpose USB peripherals include Printers, Communication Class Devices, Human Interface
Devices, FTDI USB Serial Devices, and USB Hubs. USB peripherals can be accessed using command
monitor commands to send SETUP, DATA IN and DATA OUT packets. Flash Disk firmware supports
FAT12, FAT16 and FAT32 file systems with a simple file oriented command set.
1.2 Part Numbers
Part Number
Package
VNC1L-1A
48 Pin LQFP
1.3 Programming VNC1L
1. The VNC1L is shipped as a blank device. Initial in-circuit programming (using the downloaded
.rom firmware file) can
only
be done via the UART interface. ( Refer to section 4.3 )
2. When upgrading VNC1L in-situ, then the device can be programmed via the UART interface (.rom
file). Alternatively, it can be upgraded via a USB Flash disk using a file called “ftrfb.ftd”. Both file
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