參數(shù)資料
型號(hào)： FT232HL-REEL
廠商： FTDI, Future Technology Devices International Ltd
文件頁(yè)數(shù)： 13/65頁(yè)
文件大?。?/td> 0K
描述： IC HS USB TO UART/FIFO 48LQFP
應(yīng)用說(shuō)明： FT1248 Application Note
標(biāo)準(zhǔn)包裝： 1
通道數(shù)： 1，UART
FIFO's： 4kb
規(guī)程： RS232，RS422，RS485
電源電壓： 1.62 V ~ 1.98 V，2.97 V ~ 3.63 V
帶并行端口： 是
帶故障啟動(dòng)位檢測(cè)功能： 是
帶調(diào)制解調(diào)器控制功能： 是
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： 768-1101-6
Copyright 2012 Future Technology Devices International Limited
20
Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.8
Clearance No.: FTDI #199
3.5.7 FT232H Pins Configured as a CPU-style FIFO Interface
The FT232H can be configured in a CPU-style FIFO interface mode which allows a CPU to interface to USB
via the FT232H. 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 3.12
Pin No.
Name
Type
Fast Serial Interface Configuration
Description
13, 14, 15, 16,
17, 18, 19, 20
ADBUS[7:0]
I/O
D7 to D0 bidirectional data bus
21
CS#
INPUT
Active low chip select input
25
A0
INPUT
Address bit A0
26
RD#
INPUT
Active Low FIFO Read input
27
WR#
INPUT
Active Low FIFO Write input
28
SIWU#
INPUT
Tie this pin to VCCIO if not used – otherwise, for
normal operation
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.
Table 3.12 CPU-style FIFO Interface Configured Pin Descriptions
For a functional description of this mode, please refer to section 4.10
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