FT4232HL - TRAY FTDI, Future Technology Devices International Ltd, FT4232HL - TRAY Datasheet - Page 14
![IC USB UART/MPSSE QUAD HS 64LQFP](/photos/28/19/281917/mfg_ft4232hl_sml.jpg)
FT4232HL - TRAY
Manufacturer Part Number
FT4232HL - TRAY
Description
IC USB UART/MPSSE QUAD HS 64LQFP
Manufacturer
FTDI, Future Technology Devices International Ltd
Series
USBmadeEZ-FIFOr
Datasheet
1.FT4232HL_-_REEL.pdf
(45 pages)
Specifications of FT4232HL - TRAY
Features
USB to UART and/or SPI, I2C, JTAG
Number Of Channels
4, QUART
Fifo's
2048 Byte
Protocol
RS-232, RS-422, RS-485
Voltage - Supply
3 V ~ 3.6 V
With Auto Flow Control
Yes
With Modem Control
Yes
With Cmos
Yes
Mounting Type
Surface Mount
Package / Case
64-LQFP
For Use With
768-1031 - MOD USB HS FT4232H EVAL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
FT4232HL - TRAY
Channel A
3.4.3 FT4232H pins used in an MPSSE
The FT4232H channel A and channel B each have a Multi-Protocol Synchronous Serial Engine (MPSSE).
Each MPSSE can be independently configured to a number of industry standard serial interface protocols
such as JTAG, I2C or SPI, or it can be used to implement a proprietary bus protocol. For example, it is
possible to use one of the FT4232H’s channels (e.g. channel A) to connect to an SRAM configurable FPGA
such as supplied by Altera or Xilinx. The FPGA device would normally be un-configured (i.e. have no
defined function) at power-up. Application software on the PC could use the MPSSE to download
configuration data to the FPGA over USB. This data would define the hardware function on power up. The
other MPSSE channel (e.g. channel B) would be available for another serial interface function while
channel C and channel D can be configured as UART or bit-bang mode. Alternatively each MPSSE can be
used to control a number of GPIO pins. When configured in this mode, the pins used and the descriptions
of the signals are shown in Table 3.7
Table 3.7 Channel A and Channel B MPSSE Configured Pin Descriptions
For a functional description of this mode, please refer to section 4.4.
When either Channel A or Channel B or both channels are used in MPSSE mode, Channel C and Channel
D can be configured as asynchronous serial interface (RS232/422/485) or Bit-Bang mode or a
combination of both.
Pin No.
16
17
18
19
21
22
23
24
Channel B
Pin No.
26
27
28
29
30
32
33
34
Copyright © 2010 Future Technology Devices International Limited
FT4232H QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC
TMS/CS
TCK/SK
TDI/DO
TDO/DI
GPIOL0
GPIOL1
GPIOL2
GPIOL3
Name
OUTPUT
OUTPUT
OUTPUT
INPUT
Type
I/O
I/O
I/O
I/O
Clock Signal Output. For example:
JTAG – TCK, Test interface clock
SPI – SK, Serial Clock
Serial Data Output. For example:
JTAG – TDI, Test Data Input
SPI – DO, serial data output
Serial Data Input. For example:
JTAG – TDO, Test Data output
SPI – DI, Serial Data Input
Output Signal Select. For example:
JTAG – TMS, Test Mode Select
SPI – CS, Serial Chip Select
General Purpose input/output
General Purpose input/output
General Purpose input/output
General Purpose input/output
MPSSE Configuration Description
Document No.: FT_000060
Clearance No.: FTDI#78
Datasheet Version 2.10
14