VNC1L FTDI, VNC1L Datasheet - Page 7

• Manufacturer Part Number: VNC1L
• Description: IC, USB HOST CONTROLLER, LQFP-48
• Manufacturer: FTDI

Specifications of VNC1L

• Usb Type: Host Controller
• Usb Version: 2.0
• No. Of Ports: 2
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +70°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 48
• Termination Type: SMD
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 1 continued - Pin �ut Description
* These pins are pulled to VCC via internal 200��٠resistors.
** PS/2 Ports can be available while UART, FIF�, or SPI interface is enabled.
Table � - Data and Control Bus Signal �ode �ptions - UART Interface
Table � - Data and Control Bus Signal �ode �ptions - Parallel FIF� Interface
Vinculum VNC1L Embedded USB Host Controller I.C. Datasheet Version 0.96
�2
�3
��
��
�6
�7
�8
Pin No.
31
32
33
3�
3�
36
37
38
�1
Pin No.
31
32
33
3�
3�
36
37
38
�1
�2
�3
��
2.3 UART Interface Signal Descriptions
2.4 Parallel FIFO Interface Signal Descriptions and Timing Diagrams
Name
TXD
RXD
RTS#
CTS#
DTR#
DSR#
DCD#
RI#
TXDEN
Name
D0
D1
D2
D3
D�
D�
D6
D7
RXF#
TXE#
WR
RD#
ACBUS1
ACBUS2
ACBUS3
ACBUS�
ACBUS�
ACBUS6
ACBUS7
I/�
I/�
I/�
I/�
I/�
I/�
I/�
Type
�utput
Input
�utput
Input
�utput
Input
Input
Input
�utput
Type
I/�
I/�
I/�
I/�
I/�
I/�
I/�
I/�
�UTPUT
�UTPUT
INPUT
INPUT
�V safe bidirectional data / control bus, AC bit 1
�V safe bidirectional data / control bus, AC bit 2
�V safe bidirectional data / control bus, AC bit 3
�V safe bidirectional data / control bus, AC bit �
�V safe bidirectional data / control bus, AC bit �
�V safe bidirectional data / control bus, AC bit 6
�V safe bidirectional data / control bus, AC bit 7.
To use a 1� MHz crystal with the VNC1L fit a 47
kΩ pull-down resistor� �lternatively�� fitting a 47 kΩ
pull-up resistor on this pin will switch off the inter-
nal cloc�� multiplier, allowing the device to be fed
with an e��ternal �8��� cloc�� signal into XTIN.
Description
Transmit asynchronous data output
Receive asynchronous data input
Request To Send Control �utput / Handsha��e signal
Clear To Send Control Input / Handsha��e signal
Data Terminal Ready Control �utput / Handsha��e signal
Data Set Ready Control Input / Handsha��e signal
Data Carrier Detect Control Input
Ring Indicator Control Input. When the Remote Wa��e up option is enabled in the EEPR��, ta��ing RI#
low can be used to resume the PC USB Host controller from suspend.
Enable Transmit Data for RS�8� designs
Description
FIF� Data Bus Bit 0
FIF� Data Bus Bit 1
FIF� Data Bus Bit 2
FIF� Data Bus Bit 3
FIF� Data Bus Bit �
FIF� Data Bus Bit �
FIF� Data Bus Bit 6
FIF� Data Bus Bit 7
When high, do not read data from the FIF�. When low, there is data available in the FIF� which can
be read by strobing RD# low, then high again.
When high, do not write data into the FIF�. When low, data can be written into the FIF� by strobing
WR high, then low.
Enables the current FIF� data byte on D0...D7 when low. Fetched the ne��t FIF� data byte �if avail-
able) from the receive FIF� buffer when RD# goes from high to low
Writes the data byte on the D0...D7 pins into the transmit FIF� buffer when WR goes from high to low.
© Future Technology Devices Intl Ltd. 2006-2007
TXE#
RD#
WR
PortAC1
PortAC2
PortAC3
PortAC�
PortAC�
PortAC6
PortAC7