参数资料
型号: VNC2-48Q1B-TRAY
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 15/88页
文件大小: 0K
描述: IC USB HOST/DEVICE CTRL 48-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
标准包装: 260
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: 48-VFQFN 裸露焊盘
供应商设备封装: 48-QFN-EP(8x8)
包装: 托盘
其它名称: VNC2-48Q1A-TRAY
VNC2-48Q1A-TRAY-ND
22
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
4.2.4 Input / Output Multiplexer Module
VNC2 peripheral interfaces are UART, SPI slave0, SPI slave1, SPI master, FIFO-Asynchronous, FIFO-
Synchronous, GPIO, debug interface and PWM.
The I/O multiplexer allows the designer to select which peripherals are connected to the device I/O pins.
The selectable peripheral interfaces are only limited by the number of I/O pins available. All peripherals
are available across the package range except synchronous FIFO mode which cannot be selected on 32
pin packages. The available configurable I/O pins per package are as follows:
32 pin package – 12 I/O pins
48 pin package – 28 I/O pins
64 pin package – 44 I/O pins
Table 4.1 lists the peripherals which can be multiplexed to I/O and the maximum number of pins
required for each one. The designer can choose any mix of peripheral configurations as long as they are
within the specific package I/O pin count. Depending on the design not all 9 UART pins need to be
configured. Similarly the GIPO peripheral does not need all pins configured.
e.g. The 48 pin package has 28 I/O pins which could be configured as UART – 9 pins, SPI Master – 5
pins, FIFO Asynchronous – 12 pins and GPIO – 2 pins. This makes a total of 28 pins.
Please refer to Section 5 for a detailed description of the I/O multiplexer.
Peripherals
Maximum pins required
UART
9
SPI Slave 0
4
SPI Slave 1
4
SPI Master
5
FIFO Asynchronous
12
FIFO Synchronous
14
GPIO
40
Debug
1
PWM
8
Table 4.1 - Peripheral Pin Requirements
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