FTDI VMUSIC2

™
Future Technology
Devices International Ltd.
™
VMusic2
Vinculum VNC1L Module
http://www.vinculum.com
Copyright © Future Technology Devices International Ltd. 2007
Page 1. I n t r o d u c t i o n a n d F e a t u r es
1.1 Introduction
The VMusic2 module is a product which not only lets you add USB Flash disk interfacing to your product, but also
allows you to play back MP3 and other popular digital music formats directly from a USB flash disk. Only four signal
lines plus 5V supply and ground are required to be connected. Extensions to the Vinculum VDAP command set allow
you to play a selected file, as well as control the volume, balance, etc. of the sound channel, and monitor the status
of the file being played. The Vinculum VDAP firmware also allows the VNC1L’s I/O interface to be selected between
the serial UART or SPI using on-board jumper pins. The VMusic2 is ideal for adding MP3 playbackfrom USB drive
capabillity to home entertainment and in-car audio systems, as well as other appliances requiring audio playback
capabillity from USB Flash disks. Not only is the VDrive2 ideal for evaluation and development of VNC1L designs,
but also its neat enclosure and attractive quantity discount structure makes this module suitable for incorporation into
finished product designs.
The Vinculum VNC1L is the first of F.T.D.I.’s Vinculum family of Embedded SoC USB host controller integrated circuit
devices. Not only is it able to handle the USB Host Interface, and data transfer functions but owing to the inbuilt MCU
and embedded Flash memory, Vinculum can encapsulate the USB device classes as well. When interfacing to mass
storage devices such as USB Flash drives, Vinculum also transparently handles the FAT file structure communicating
via UART, SPI or parallel FIFO interfaces via a simple to implement command set. Vinculum provides a new cost
effective solution for providing USB Host capability into products that previously did not have the hardware resources
available.
1.2 Features
•
Uses
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F.T.D.I.’s VNC1L-1A embedded
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controller I.C. device combined with VLSI VS1003 I.C.
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for music
playback.
•
USB
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type socket to connect ����
USB Flash
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disk.
•
Stereo
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3.5mm headphone jack
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socket ������������������
for audio playback
•�������������������������
Audio line-out connector for
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audio playback
•
Only
����� four
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signals to connect, excluding
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power and ground.
•
Jumper
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selectable UART
��������
or SPI
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interfaces.
•
Single
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5V supply input.
•
Traffic indicator LED.
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•
Uses extended Vinculum VDAP firmware and command set.
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•
Program or update firmware via USB Flash disk or via UART interface.
•
VNC1L firmware programming control pins PROG# and RESET# brought out onto internal jumper interface
(only accessible on internal module PCB)
•
VMusic2 is a Pb-free, RoHS complaint development module.
•
Schematics, and firmware files available for download from the Vinculum
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website.
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
Page 2. P i n O u t
2.1 VMusic2 Pin Out
Line Out Right
GND
3.5mm Stereo audio
jack
Line Out Left
8 RI#
6 CTS#
5 TXD
Power / Traffic Indicator
bi-colour LED
4 RXD
3 5V0
2 RTS#
1 GND
GND
UART/SPI
3V3OUT
USB Flash Drive
interface
VMUSIC2
Figure 1 - VMusic2 Pin Out - UART interface.
Table 1 - Port Selection Jumper Pins
UART/SPI
I/O Mode
Pull-Up
Serial UART
Pull-Down
SPI
2.2 UART Interface Signal Descriptions
Table 2 - Data and Control Bus Signal Mode Options - UART Interface
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#
Input
Ring Indicator Control Input. Used to resume the Vinculum from suspend.
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
Page 2.3 SPI Interface Signal Descriptions and Timing Diagrams
Table 3 - Data and Control Bus Signal Mode Options - SPI Interface
Pin No.
Name
Type
Description
5
SCLK
Input
SPI Clock input, 12MHz maximum.
4
SDI
Input
SPI Serial Data Input
2
SDO
Output
SPI Serial Data Output
6
CS
Input
SPI Chip Select Input
Figure 2 - SPI Slave Data Read Cycle
R/W ADD D7
D6
D5
D4
D3
D2
D1
D0
SPICLK
SPI CS
SPI Data In
1
0
1
Status
Start
SPI Data Out
From Start - SPI CS must be held high for the entire read cycle, and must be taken low for at least one clock period
after the read is completed. The first bit on SPI Data In is the R/W bit - inputting a ‘1’ here allows data to be read from the chip. The next bit is the address bit, ADD, which is used to indicate whether the data register (‘0’) or the status
register (‘1’) is read from. During the SPI read cycle a byte of data will start being output on SPI Data Out on the next
clock cycle after the address bit, MSB first. After the data has been clocked out of the chip, the status of SPI Data Out should be checked to see if the data read is new data. A ‘0’ level here on SPI Data Out means that the data read
is new data. A ‘1’ indicates that the data read is old data, and the read cycle should be repeated to get new data.
Remember that CS must be held low for at least one clock period before being taken high again to continue with the
next read or write cycle.
Figure 3 - SPI Slave Data Write Cycle
R/W ADD D7
D6
D5
D4
D3
D2
D1
D0
SPICLK
SPI CS
SPI Data In
1
0
0
Status
Start
SPI Data Out
From Start - SPI CS must be held high for the entire write cycle, and must be taken low for at least one clock period
after the write is completed. The first bit on SPI Data In is the R/W bit - inputting a ‘0’ here allows data to be written to the chip. The next bit is the address bit, ADD, which is used to indicate whether the data register (‘0’) or the status
register (‘1’) is written to. During the SPI write cycle a byte of data can be input to SPI Data In on the next clock cycle
after the address bit, MSB first. After the data has been clocked in to the chip, the status of SPI Data Out should be VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
Page checked to see if the data read was accepted. A ‘0’ level on SPI Data Out means that the data write was accepted. A
‘1’ indicates that the internal buffer is full, and the write should be repeated. Remember that CS must be held low for at
least one clock period before being taken high again to continue with the next read or write cycle.
Figure 4 - SPI Slave Data Timing Diagrams
T1
SPICLK
T2
T3
SPICS /
SPI DATA IN
T6
T4
T5
SPI DATA OUT
T7
Table 4 - SPI Slave Data Timing
Time
Description
Min
Typical
Max
Unit
T1
SPICLK Period
83
-
-
ns
T2
SPICLK High
20
-
-
ns
T3
SPICLK Low
20
-
-
ns
T4
Input Setup Time
10
-
-
ns
T5
Input Hold Time
10
-
-
ns
T6
Output Hold Time
2
-
-
ns
T7
Output Valid Time
-
-
20
ns
Table 5 - Status Register (ADD = ‘1’)
Bit
Description
0
RXF#
1
TXE#
2
-
3
-
4
RXF IRQEn
5
TXE IRQEn
6
-
7
-
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
Page 3. V M U S I C 2 D i m e n s i o n s
Figure 5 - VDRIVE2 mechanical dimensions
67.0mm / 2.64"
42.1mm / 1.66"
0.44 mm /
0.02"
2.0 mm /
0.08"
17.4 mm /
0.69"
21.0mm
/ 0.83"
Front
Back
Vmusic
Side
7.70 mm /
0.30"
60.00 mm /
2.36"
Top
2.50 mm /
0.10"
1.65 mm /
0.06"
0.70 mm /
0.03"
4.20 mm /
0.17"
Bottom
Fully detailed mechanical drawings for the VMusic2 enclosure are available on request from FTDI technical support.
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
Page 4. A p p l i c a t i o n E x a m p l e - V MUSIC2 to PIC Micro Interface
5V0
5V0
GND
Line Out Right
GND
3.5mm Stereo audio
jack
5V0
+
10uF
Line Out Left
100nF
10pF
8 RI#
20 MHz
47k
CTS#
GND
TXD
Power / Traffic Indicator
bi-colour LED
RXD
RTS#
10pF
TXD
RXD
GND
RTS#
VDD
GND
RA5
ICSPDAT
RA4
ICSPCLK
MCLR#
RA2
RX
RC0
TX
RC1
RC3
RC2
47k
47k
RA1
RA2
RC0
RC1
CTS#
PIC16F688
USB Flash Drive
interface
GND
Skip Forward
RA1
Skip Back
VMUSIC2
RA2
Stop
RC0
Play/Pause/Continue
RC1
GND
Figure 6 - MP3 playback using VMusic2 controlled by a PIC MCU
By adding a PIC microcontroller and a few other components, the VMusic2 module can be used to playback audio
files stored on a USB flash disk. Fig 5 shows the schematic of this simple application. Four push buttons are connected to the inputs on the PIC. There buttons are used to control play / pause / continue / stop / skip forward /
skip back / volume up and volume down. The Microchip PIC code is written using the standard VDAP music playback
commands, and is available on request from FTDI.
Consult the Vinculum VDAP firmware datasheet for full details of the command set used by the VMusic2, including the audio playback commands.
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007
47k
Page Disclaimer
Copyright © Future Technology Devices International Limited, 2007.
Version 0.96 - Initial Datasheet Created February 2007
Version 0.98 - Initial Datasheet Created March 2007
Neither the whole nor any part of the information contained in, or the product described in this manual, may be
adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder.
This product and its documentation are supplied on an as-is basis and no warranty as to their suitability for any
particular purpose is either made or implied.
Future Technology Devices International Ltd. will not accept any claim for damages howsoever arising as a result of
use or failure of this product. Your statutory rights are not affected.
This product or any variant of it is not intended for use in any medical appliance, device or system in which the failure
of the product might reasonably be expected to result in personal injury.
This document provides preliminary information that may be subject to change without notice.
Contact FTDI
Head Office Future Technology Devices International Ltd.
373 Scotland Street,
Glasgow G5 8QB,
United Kingdom
Tel. : +(44) 141 429 2777
Fax. : +(44) 141 429 2758
E-Mail (Sales) : [email protected]
E-Mail (Support) : [email protected]
E-Mail (General Enquiries) : [email protected]
Regional Sales Offices Future Technology Devices International Ltd.
(Taiwan)
4F, No 18-3,
Sec. 6 Mincyuan East Road,
Neihu District,
Taipei 114,
Taiwan, R.o.C.
Future Technology Devices International Ltd.
(USA)
7235 NW Evergreen Parkway,
Suite 600
Hillsboro,
OR 97124-5803
USA
Tel.: +886 2 8791 3570
Fax: +886 2 8791 3576
Tel.: +1 (503) 547-0988
Fax: +1 (503) 547-0987
E-Mail (Sales): [email protected]
E-Mail (Support): [email protected]
E-Mail (General Enquiries): [email protected]
E-Mail (Sales): [email protected]
E-Mail (Support): [email protected]
E-Mail (General Enquiries): [email protected]
Website URL : http://www.ftdichip.com
VMusic2 Vinculum VNC1L Module
Datasheet Version 0.98
© Future Technology Devices International Ltd. 2007