V2-EVAL-EXT32 FTDI, V2-EVAL-EXT32 Datasheet - Page 39
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V2-EVAL-EXT32
Manufacturer Part Number
V2-EVAL-EXT32
Description
Interface Modules & Development Tools USB V2-EVAL Daughter Module 32-pin
Manufacturer
FTDI
Specifications of V2-EVAL-EXT32
Interface Type
USB, Serial, UART, FIFO, SPI
Data Bus Width
Serial, 8 bit
Operating Supply Voltage
4.75 V to 5.25 V
Product
Interface Modules
Silicon Manufacturer
FTDI
Silicon Family Name
Vinculum II
Features
Embedded USB Host / Slave Chip, Two USB Type A Connectors
Svhc
No SVHC (18-Jun-2010)
Rohs Compliant
Yes
Kit Features
Module With 32-pin QFN VNC2
For Use With/related Products
VNC2-32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
V2-EVAL Kit
Figure 6.1: FT4232H Configuration
6.1
The FT4232H channel A, ADBUS I/O, pins are used for UART operation with the VNC2. The UART inputs
to the FT4232H are supplied directly from the VNC2 device pins, while the UART outputs from the
FT4232H, are passed to an external multiplexer. The multiplexer allows the UART interface to the VNC2
to be driven by either by the FT4232H device or by an external UART device, which is connected to the
V2-EVAL board via the various board I/O header pins. The multiplexer select pin is controlled by pin
DDBUS0 on the FT4232H, where a logic ‘0’ on the select pin will force the FT4232H device to drive the
UART interface on the VNC2, while a logic ‘1’ will allow IOBUS21 and IOBUS23 header pins on the board
to drive the UART.
FT4232H I/O
INTERFACE
CONTROL
‘SNIFFER’
UART
DEBUG
UART
MUX
UART Interface
DDBUS2
DDBUS3
DDBUS5
DDBUS6
DDBUS7
BDBUS0
BDBUS1
ADBUS0
ADBUS1
ADBUS2
ADBUS3
ADBUS4
ADBUS5
ADBUS6
ADBUS7
BDBUS2
BDBUS3
BDBUS4
BDBUS5
BDBUS6
BDBUS7
CDBUS0
CDBUS1
CDBUS2
CDBUS3
CDBUS4
CDBUS5
CDBUS6
CDBUS7
DDBUS0
DDBUS1
Copyright © 2010 Future Technology Devices International Limited
VNC2_UART_RXD
DB_TX_ENABLE
MUX SELECT
FT VNC RESET
FT VNC PROG
DB_RXD
FT_RXD
FT_DSR
DB_TXD
FT_DTR
FT_DCD
FT_TXD
FT_RTS
FT_CTS
FT_RI#
V2-EVAL Vinculum II Evaluation Board Datasheet Version 1.0
IORESET
IOPROG#
IOBUS23
IOBUS21
INVERTER
INPUT
1B2
2B2
3B1
3B2
4B1
4B2
OUTPUT
1B1
2B1
2 PORT BUFFER
INPUT EN
OUTPUT EN
SELECT
Document Reference No.: FT_000247
From board I/O
4 PORT
MUX
header pins
SN74LVC2G125
SN74CBT3257D
1A
2A
3A
4A
OUT
IN
VNC2_UART_RX
VNC2_CTS#
VNC2_RESET#
VNC2_PROG#
Clearance No.: FTDI#148
VNC2_DEBUG
To VNC2
Device
38