FT2232HQ-REEL FTDI, FT2232HQ-REEL Datasheet - Page 17

• Manufacturer Part Number: FT2232HQ-REEL
• Description: USB Interface IC USB HS to Dual UART/ FIFO/SPI/JTAG/I2C
• Manufacturer: FTDI

Specifications of FT2232HQ-REEL

• Mounting Style: SMD/SMT
• Package / Case: QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24,23,22,21
19,18,17,16
3.4.7 FT2232H Pins Configured as a CPU-style FIFO Interface
The FT2232H channel A or channel B can be configured in a CPU-style FIFO interface mode which allows
a CPU to interface to USB via the FT2232H. This mode is enabled in the external EEPROM.
When configured in this mode, the pins used and the descriptions of the signals are shown in Table 3.10
Table 3.10 Channel A and Channel B CPU-style FIFO Interface Configured Pin Descriptions
For a functional description of this mode, please refer to section 4.9 CPU-style FIFO Interface Mode
Description
Channel A
Pin No.
26
27
28
29
,
46,45,44,43
41,40,39,38
Channel B
Pin No.
48
52
53
54
,
Copyright © 2010 Future Technology Devices International Limited
Channel A =
ADBUS[7:0]
Channel B =
BDBUS[7:0]
FT2232H DUAL HIGH SPEED USB TO MULTIPURPOSE UART/FIFO IC
Name
WR#
CS#
RD#
A0
INPUT
INPUT
INPUT
INPUT
Type
I/O
D7 to D0 bidirectional data bus
Active low chip select input
Address bit A0
Active Low FIFO Read input
Active Low FIFO Write input
Fast Serial Interface Configuration
Document No.: FT_000061
Clearance No.: FTDI#77
Datasheet Version 2.10
Description
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