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参数资料
| 型号： | VNC2-64Q1B-REEL |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 17/88页 |
| 文件大小： | 0K |
| 描述： | IC USB HOST/DEVICE CTRL 64-QFN |
| 应用说明： | Vinculum-II IO Cell Description AppNote Vinculum-II Debug Interface Description AppNote Vinculum-II IO Mux Explained AppNote Vinculum-II PWM Example AppNote Migrating Vinculum Designs AppNote |
| 特色产品： | Vinculum VNC2 |
| 标准包装： | 1 |
| 系列： | Vinculum-II |
| 控制器类型： | USB 2.0 控制器 |
| 接口： | USB，主机/设备配置，UART，SPI，PWM，闪存 256K，DMA 4CH |
| 电源电压： | 1.62 V ~ 1.98 V |
| 电流 - 电源： | 25mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFQFN 裸露焊盘 |
| 供应商设备封装： | 64-QFN（8x8） |
| 包装： | 标准包装 |
| 产品目录页面： | 634 (CN2011-ZH PDF) |
| 其它名称： | 768-1046-6 |
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Copyright 2009-2011 Future Technology Devices International Limited
Datasheet
Vinculum-II Embedded Dual USB Host Controller IC
Version 1.5
Document No.: FT_000138 Clearance No.: FTDI# 143
5 I/O Multiplexer
FTDI devices typically have multiple interfaces available to communicate with external devices. VNC2 has
UART, SPI slave0, SPI slave1, SPI master, FIFO, GPIO, and PWM peripherals. The available packages for
VNC2 provide any of these interfaces to be active on the available pins through the use of an I/O
Multiplexer. Table 5.1 lists the signals available for each peripheral. Table 5.2 to 12 explain the use of
the I/O multiplexer.
Multiplexers are used to connect the VNC2 peripherals to the external IOBUS pins. This enables the
designer to select which IOBUS pins he wishes to map a particular peripheral to. Peripheral signals are
allocated to one of four groups, which connect to the I/O multiplexer. Each I/O peripheral signal can
connect to one out of every four external IOBUS pins. The IOBUS pin that a peripheral signal can connect
to is dictated by the peripheral signals group. For example, if a peripheral signal is allocated to group 0
then it can connect to IOBUS0, IOBUS4, IOBUS8, IOBUS12 and so on. If a peripheral signal is allocated
to group 1 then it can connect to IOBUS1, IOBUS5, IOBUS9, IOBUS13 and so on. Figure 5.1 details the
I/O multiplexer concept, where, for example, a white peripheral signal can connect to any white IOBUS
pin, a green peripheral signal can connect to a green IOBUS pin. Figure 5.2, Figure 5.3 and Figure 5.4
give examples of connecting peripheral signals to differing IOBUS pins.
The IO Multiplexer also provides the following features:
Ability to configure an I/O pad as an input, output or bidirectional pad.
At power on reset, all pins are set as inputs by default. Whenever the I/O Mux is enabled the pins
are configured as their default values listed Table 6 within section 3.12.
Note: It is recommended not to reassign the debug interface signal (debug_if) from its default
setting of IOBUS0 (Pin 11 on all packages). This assumes that the debug pin is required in the
application design, if not, pin 11 can be assigned to any other group 0 signal.
An application (IOMUX) within the RTOS is available to aid with pin configuration, Section 5.2 has more
details.
Further details of the IO Multiplexer are available within Application Note AN_139 Vinculum-II IO Mux
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相关代理商/技术参数 |
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|---|---|
| VNC2-64Q1B-TRAY | 功能描述:USB 接口集成电路 Vinculum-II Dual Host/Dev IC QFN-64 RoHS:否 制造商:Cypress Semiconductor 产品:USB 2.0 数据速率: 接口类型:SPI 工作电源电压:3.15 V to 3.45 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:WLCSP-20 |
| VNC2DEBUGMODULE | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:VNC2 Vinculum Debug Module |
| VNC712B-N50A-5TZ | 制造商:SMC Corporation of America 功能描述:Valve, media, coolant, 2 way |
| VNC-DK4-C1404CM | 制造商:L-com Inc 功能描述:4CH DVR w/4 CMOS CAMERAS no HD |
| VNC-DK4-C1404CM-HD | 制造商:L-com Inc 功能描述:4CH DVR w/4 CMOS CAMS 500GB HD |
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