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參數(shù)資料
| 型號： | VNC2-48L1B-TRAY |
| 廠商： | FTDI, Future Technology Devices International Ltd |
| 文件頁數(shù)： | 17/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC USB HOST/DEVICE CTRL 48-LQFP |
| 應(yīng)用說明： | 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 |
| 標(biāo)準(zhǔn)包裝： | 250 |
| 系列： | Vinculum-II |
| 控制器類型： | USB 2.0 控制器 |
| 接口： | USB，主機(jī)/設(shè)備配置，UART，SPI，PWM，閃存 256K，DMA 4CH |
| 電源電壓： | 1.62 V ~ 1.98 V |
| 電流 - 電源： | 25mA |
| 工作溫度： | -40°C ~ 85°C |
| 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： | 托盤 |
| 其它名稱： | VNC2-48L1A-TRAY VNC2-48L1A-TRAY-ND |
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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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參數(shù)描述 |
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| VNC2-48L1C-REEL | |
| VNC2-48L1C-TRAY | 功能描述:IC USB HOST/DEVICE CTRL 48-LQFP 制造商:ftdi, future technology devices international ltd 系列:Vinculum-II 包裝:托盤 零件狀態(tài):在售 協(xié)議:USB 功能:控制器 接口:SPI，UART 標(biāo)準(zhǔn):USB 2.0 電壓 - 電源:1.8V， 3.3V 電流 - 電源:25mA 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 供應(yīng)商器件封裝:48-LQFP（7x7） 標(biāo)準(zhǔn)包裝:250 |
| VNC2-48Q1A-REEL | 功能描述:USB 接口集成電路 Obsolete see VNC2-48Q1B-REEL RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| VNC2-48Q1A-TRAY | 功能描述:USB 接口集成電路 Obsolete see VNC2-48Q1B-TRAY RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| VNC2-48Q1B | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:CONTROLLER USB VINCULUM II 48QFN 制造商:Future Technology Devices International (FTDI Chip) 功能描述:CONTROLLER, USB, VINCULUM II, 48QFN |
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