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| 型号： | MM232R |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 11/24页 |
| 文件大小： | 0K |
| 描述： | MOD USB UART MINI DEV FT232R |
| 产品培训模块： | USB Introduction USB-UART Interface Solutions |
| 产品目录绘图： | MM232R |
| 标准包装： | 5 |
| 主要目的： | 接口，USB 2.0 至 UART（RS232/RS422/RS485）电桥 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | FT232R |
| 主要属性： | 全速，300 ~ 3 MB 速率，安全识别号 |
| 次要属性： | 6 ~ 48MHz 时钟发生器输出，免版税驱动器 |
| 已供物品： | 板，连接器 |
| 产品目录页面： | 633 (CN2011-ZH PDF) |
| 相关产品： | 768-1008-6-ND - IC USB FS SERIAL UART 32-QFN 768-1007-6-ND - IC USB FS SERIAL UART 28-SSOP 768-1008-1-ND - IC USB FS SERIAL UART 32-QFN 768-1007-1-ND - IC USB FS SERIAL UART 28-SSOP 768-1008-2-ND - IC USB FS SERIAL UART 32-QFN 768-1007-2-ND - IC USB FS SERIAL UART 28-SSOP |
| 其它名称： | 768-1021 |
Document Reference No.: FT_000214
MM232R USB - Serial UART Development Module Incorporating Clock Generator
Datasheet Version 1.1
Clearance No.: FTDI# 132
4.3 CBUS Signal Options
The following options can be configured on the CBUS I/O pins. These options are all configured in the
internal EEPROM using the utility software FT_PROG, which can be downloaded from the www.ftdichip.com .
The default configuration is described in Section 9
CBUS Signal
Option
TXDEN#
PWREN#
TXLED#
RXLED#
TX&RXLED#
SLEEP#
CLK48
CLK24
CLK12
CLK6
CBitBangI/O
BitBangWRn
BitBangRDn
Available On CBUS Pin
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3,
CBUS4
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
CBUS0, CBUS1, CBUS2, CBUS3
Description
Enable transmit data for RS485
Goes low after the device is configured by USB, then high
during USB suspend. Can be used to control power to
external logic in high power designs. Needs 10k pull up to
VCC.
Transmit data LED drive – pulses low when transmitting
data via USB.
Receive data LED drive – pulses low when receiving data
via USB.
LED drive – pulses low when transmitting or receiving
data via USB. See
Goes low during USB suspend mode. Typically used to
power down an external TTL to RS232 level converter I.C.
in USB to RS232 converter designs.
48MHz Clock output.
24 MHz Clock output.
12 MHz Clock output.
6 MHz Clock output.
CBUS bit bang mode option. Allows up to 4 of the CBUS
pins to be used as general purpose I/O. Configured
individually for CBUS0, CBUS1, CBUS2 and CBUS3 in the
internal EEPROM. A separate application note describes in
more detail how to use CBUS bit bang mode.
(www.ftdichip.com)
Synchronous and asynchronous bit bang mode WR#
strobe Output.
Synchronous and asynchronous bit bang mode RD#
strobe Output.
Table 4.2 CBUS Signal Options
? Copyright 2010 Future Technology Devices International Ltd
10
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