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Copyright © 2013 Future Technology Devices International Limited

VDrive3 Datasheet

Version 1.2

Document Reference No.: FT_000699

Clearance No.: FTDI#

335

3.2

VDrive3 Jumper Configuration

The interface modes of the VDrive3 running on a V2DAP firmware is given in Table 3-1. The VDrive3

comes preloaded with the V2DAP firmware and the jumper on the UART/SPI pin is set to UART mode by

default.

UART/SPI

Interface Mode

Pull-Up

UART

Pull-Down

SPI

Table 3-1 – VDrive3 Jumper Box

3.3

LED Functions

Operation

LED Behaviour

Power On

LED flashes Green/Red alternately for 2 seconds

Repeated until monitor connects

USB Disk Initialisation

LED Red

USB Disk Ready

LED Green

USB Disk Removed

LED off

Disk is connected to USB Port

LED flashes Green

Nothing is connected to USB Port

LED off

Table 3-2 – VDrive3 LED Functions

3.4

Interface Description

Pin No.

Name

Type

Description

1

GND

PWR

Signal ground

2

RTS#

Output

Request To Send control output – Handshake signal

3

5V0

PWR

5V supply input

4

RXD

Input

Receive asynchronous data input

5

TXD

Output

Transmit asynchronous data output

6

CTS#

Input

Clear To Send control input - Handshake signal

7

NC

-

No Connect

8

RI#/WU

Input

Ring Indicator control input / Wake Up

Table 3-3 – 3.3V TTL/CMOS UART Interface Pin-Out

Pin No.

Name

Type

Description

5

SCLK

Input

SPI clock input. Maximum frequency: 24MHz – 3.3V TTL

4

MOSI

Input

SPI slave serial data input – 3.3V TTL

2

MISO

Output

SPI slave serial data output – 3.3V TTL

6

SS#

Input

SPI slave select input – 3.3V TTL

Table 3-4 – 3.3V TTL/CMOS SPI Interface Pin-Out

For further details see VNC2 datasheet.