VNC2-64L1B-REEL FTDI, Future Technology Devices International Ltd, VNC2-64L1B-REEL Datasheet - Page 48
![IC USB HOST CTLR VINCULUM 64LQFP](/photos/28/19/281917/mfg_ft4232hl_sml.jpg)
VNC2-64L1B-REEL
Manufacturer Part Number
VNC2-64L1B-REEL
Description
IC USB HOST CTLR VINCULUM 64LQFP
Manufacturer
FTDI, Future Technology Devices International Ltd
Series
Vinculum-IIr
Datasheet
1.VNC2-32Q1B-REEL.pdf
(90 pages)
Specifications of VNC2-64L1B-REEL
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
768-1047-2
VNC2-64L1A-REEL
VNC2-64L1A-REEL
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
VNC2-64L1B-REEL
Manufacturer:
FTDI, Future Technology Devices International Ltd
Quantity:
10 000
6.3.5 Unmanaged Mode
The VNC2 SPI Slave also supports an unmanaged SPI mode. This is a simple data exchange between
Master and Slave. It operates in the standard 4 pin mode (SS#, CLK, MOSI and MISO) with all transfers
controlled by the SPI Master.
When the CPU wants to send data out of the SPI Slave it writes this into the spi_slave_data_tx register.
This will then be moved into the transfer shift register to wait for the SPI Master to request it. The SPI
Master will at some point assert SS# and start clocking data on MOSI with SCK. As this is shifted into the
transfer shift register, the SPI Slave will also be shifting data in the opposite direction on MISO. At the
end of the transfer the SPI Slave copies the received data from the shift register to spi_slave_data_rx as
seen in Figure 6-12.
Figure 6-12 Unmanaged Mode Transfer Diagram
0
0
1
1
SPI Master
Clk Div
2
2
Shift Register
Shift Register
SPI
Copyright © 2010 Future Technology Devices International Limited
3
3
4
4
VINCULUM-II EMBEDDED DUAL USB HOST CONTROLLER IC Datasheet
5
5
6
6
7
7
mosi
miso
ss#
clk
0
0
Document No.: FT_000138
Clearance No.: FTDI#
1
1
2
2
Tx Shift Register
SPI Slave
Rx Shift Register
3
3
4
4
Version -
5
5
6
6
143
1.2
7
7
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