VNC2-64L1B-TRAY FTDI, Future Technology Devices International Ltd, VNC2-64L1B-TRAY Datasheet - Page 49
![IC USB HOST VINCULUM-II 64LQFP](/photos/6/82/68259/ftdi_vinculum_vnc2_sml.jpg)
VNC2-64L1B-TRAY
Manufacturer Part Number
VNC2-64L1B-TRAY
Description
IC USB HOST VINCULUM-II 64LQFP
Manufacturer
FTDI, Future Technology Devices International Ltd
Series
Vinculum-IIr
Datasheet
1.VNC2-32Q1B-REEL.pdf
(90 pages)
Specifications of VNC2-64L1B-TRAY
Mfg Application Notes
Vinculum-II IO Cell Description AppNote Vinculum-II Debug Interface Description AppNote Vinculum-II IO Mux Explained AppNote Vinculum-II PWM Example AppNote Migrating Vinculum Designs AppNote
Controller Type
USB 2.0 Controller
Interface
SPI Serial, USB, UART
Voltage - Supply
1.62 V ~ 1.98 V
Current - Supply
25mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
VNC2-64L1A-TRAY
VNC2-64L1A-TRAY
VNC2-64L1A-TRAY
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
VNC2-64L1B-TRAY
Manufacturer:
FTDI, Future Technology Devices International Ltd
Quantity:
10 000
6.3.6 VNC1L Legacy Interface
VNC2 SPI is compatible with the SPI slave of VNC1L. This is a custom protocol using 4 wires and will be
explained here.
The Master asserts the slave select, but in this case it is an active high signal. Following this, a 3 bit
command is sent on the MOSI pin (see Figure 6-15 for command structure). This has instructions on
whether a read or write is requested and if data or status is to be sent. For a data write, 8 bits of data
are sent on MOSI followed by a status bit being returned on MISO. If this bit is „0‟ it means the data write
was successful. If it is „1‟ it means that internal buffer was full and the write should be repeated. Finally,
the slave select is de-asserted. See Figure Figure 6-13 for an example of this:
Figure 6-13 VNC1L Mode Data Write
Data reads are similar, with the data from Slave to Master coming on the MISO pin. If the status bit is „0‟
it means the data byte sent is new data that has not been read before. If it is „1‟ it means that it is old
data. See Figure 6-14 for an example.
Figure 6-14 VNC1L Mode Data Read
The command and status formats for this mode can be seen in Figure 6-16 below with a description of
each field in Table 19.
Command:
Data:
Status:
Figure 6-15 VNC1L Compatible SPI Command and Status Structure
Start
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Status
Copyright © 2010 Future Technology Devices International Limited
R/W
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VINCULUM-II EMBEDDED DUAL USB HOST CONTROLLER IC Datasheet
Addr
D5
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D2
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Document No.: FT_000138
Clearance No.: FTDI#
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Version -
143
1.2
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