Key Features of the Cypress® USB-Serial Bridge Controller - KBA85909

Version 7

    Version: *D

     

    Translation - Japanese: サイプレス® USB-シリアルブリッジコントローラーの主な機能 - KBA85909 - Community Translated (JA)

     

    Question:

    What are the key features of the Cypress® USB-Serial Bridge Controller?

     

    Answer:

    The Cypress USB-Serial Bridge Controller is the industrys first and only configurable USB bridge solution that has two serial channels that can be independently configured to a UART, I2C, or SPI interface. The USB-Serial bridge controllers integrate CapSense® capacitive-touch sensing technology (supports up to 8 touch-sensing buttons) and USB-IF Battery Charging specification ver. 1.2 (to detect the source of power on the USB port). The Cypress USB-Serial Bridge Controller offers the following industry-leading features.

     

    Configurable Dual Serial Channels

    The CY7C6521x family features up to two configurable serial communication blocks (SCBs). Each SCB can be configured to work as a UART, I2C, or SPI interface.

     

    UART

    • Full duplex data rates up to 3 Mbps.
    • Supports 7 or 8 data bits and 1 or 2 stop bits.
    • Parity can be configured as odd, even, mark, space or no parity.
    • 256 Byte Tx and Rx buffers.

     

    I2C

    • Master/Slave modes, clock frequency up to 400 kHz.
    • Supports multi-master configuration.
    • 256 Byte Tx and Rx buffers.

     

    SPI

    • Master/Slave modes, clock frequency up to 3 MHz.
    • Supports Motorola SPI, TI SSP, and National Semiconductor Microwire (half-duplex SPI).
    • Supports transaction sizes ranging from 4 bits to 16 bits in length.
    • 256 Byte Tx and Rx buffers.

     

    USB Interface

    The USB interface is compliant wiht Full-speed USB 2.0 specifications (data rate up to 12 Mbps). It supports Communication Driver Class (CDC), Personal Healthcare Device Class (PHDC), and USB Vendor Class.

     

    Battery Charger Detection

    USB-Serial Bridge Controllers support Battery Charger Detection (BCD) compliant to USB-IF Battery Charging Specification Rev 1.2. This facilitates faster battery charging for embedded applications. The following modes are supported:

    • USB Standard Downstream Port: 100/500 mA
    • USB Charging Downstream Port: 1500 mA
    • USB Dedicated Charging Port: 1500 mA

     

    Industry’s Best Capacitive Touch Sensing

    USB-Serial Bridge Controllers integrate Cypress CapSense technology to support capacitive touch-sensing buttons. CapSense features SmartSense Auto-tuning and Waterproofing for high-reliability touch sensing. CY7C65215 and CY7C65211 support CapSense touch sensing in all GPIOs. CY7C65215 can support up to 8 touch-sensing buttons and CY7C65211 can support up to 5 touch-sensing buttons. CapSense is not supported on CY7C65213.

     

    Lowest Power Solution

    USB-Serial Bridge Controllers have industrys lowest stand-by current consumption (5 µA) among bridge controllers, making them ideal for battery operated solutions. The active current consumption is in the 15-mA range.

    Support for Multiple Operating Systems

    The USB-Serial solution supports the following operating systems:

    • Windows 8.1: 32- and 64-bit versions
    • Windows 8: 32- and 64-bit versions
    • Windows 7: 32- and 64-bit versions
    • Windows 10: 32- and 64-bit versions
    • Windows Vista: 32- and 64-bit versions
    • Windows XP: 32- and 64-bit versions
    • Windows CE: 4.2 and later versions
    • Windows 2000, Windows 98SE
    • Windows Server 2012, 2008, 2003
    • Mac OS-X: 10.6 and later versions
    • Linux: Kernel 2.6.35 and later versions
    • Android: Gingerbread and later versions

     

    Flexible and Easy to Configure

    The Cypress USB-Serial solution comes with an easy-to-use Configuration Utility, which allows the customer to easily configure the device parameters such as VID/PID, product descriptor, manufacturer string descriptor, power modes, GPIOs, UART, I2C, SPI, Battery Charger Detection (BCD), and CapSense.

    Table 1 explains the feature differences between the three parts of the USB-Serial Bridge Controller family:

    Table 1. Differences Between the Three Parts of the USB-Serial Bridge Controller Family

    Features

    CY7C65213

    CY7C65211

    CY7C65215

    USB-UART

    Single Channel (UART/I2C/SPI)

    Dual Channels (UART/I2C/SPI)

    Serial Channels

    1

    1

    2

    UART

    Yes

    Yes

    Yes

    I2C

    No

    Yes

    Yes

    SPI

    No

    Yes

    Yes

    USB-IF BC Revision 1.2

    Yes

    Yes

    Yes

    CapSense Buttons

    None

    5

    8

    GPIOs

    8

    10

    17

    JTAG Master

    No

    No

    Yes

    UART Pins

    8

    2/4/6

    2/4/6

    Industrial Temp

    Yes

    Yes

    Yes

    Package

    32-QFN

    28-SSOP

    24-QFN

    32-QFN