FT232HQ-REEL FTDI, Future Technology Devices International Ltd, FT232HQ-REEL Datasheet - Page 16

• Manufacturer Part Number: FT232HQ-REEL
• Description: IC HS USB TO UART/FIFO 48QFN
• Manufacturer: FTDI, Future Technology Devices International Ltd

Specifications of FT232HQ-REEL

• Number Of Channels: 1, UART
• Fifo's: *
• Protocol: RS-232, RS-422, RS-485
• Voltage - Supply: 1.62 V ~ 1.98 V, 2.97 V ~ 3.63 V
• With Parallel Port: Yes
• With False Start Bit Detection: Yes
• With Modem Control: Yes
• Mounting Type: *
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• With Auto Flow Control: -
• With Irda Encoder/decoder: -
• With Cmos: -
• Other names: 768-1102-2

3.5.4 FT232H can be configured as a Synchronous or Asynchronous Bit-Bang
Bit-bang mode is an FTDI FT232H device mode that changes the 8 IO lines into an 8 bit bi-directional
data bus. This mode is enabled by sending a software command (FT_SetBitMode) to the FTDI driver.
When configured in any bit-bang mode, the pins used and the descriptions of the signals are shown in
Table 3.9
Table 3.9 Synchronous or Asynchronous Bit-Bang Configured Pin Descriptions
For functional description of this mode, please refer to section 4.6
13,14,15,16,17,
Pin No.
18,19,20
Interface.
25
26
28
Copyright © 2011 Future Technology Devices International Limited
ADBUS[7:0]
WRSTB#
RDSTB#
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Name
SIWU#
OUTPUT
OUTPUT
Type
INPUT
I/O
D7 to D0 bidirectional Bit-Bang parallel I/O
data pins
Write strobe, active low output indicates
when new data has been written to the I/O
pins from the Host PC (via the USB
interface).
Read strobe, this output rising edge indicates
when data has been read from the parallel
I/O pins and sent to the Host PC (via the USB
interface).
The Send Immediate / WakeUp signal
combines two functions on a single pin. If
USB is in suspend mode (PWREN# = 1) and
remote wakeup is enabled in the EEPROM,
strobing this pin low will cause the device to
request a resume on the USB Bus. Normally,
this can be used to wake up the Host PC.
During normal operation (PWREN# = 0), if
this pin is strobed low any data in the device
RX buffer will be sent out over USB on the
next Bulk-IN request from the drivers
regardless of the pending packet size. This
can be used to optimize USB transfer speed
for some applications. Tie this pin to VCCIO if
not used.
Configuration Description
Document No.: FT_000288
Clearance No.: FTDI #199
Datasheet Version 1.2
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