Key Features of the Cypress® USB-Serial Bridge Controller - KBA85909
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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 industry’s 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 industry’s 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 |
- Tags:
- battery charger detection
- cable
- full speed
- i2c
- spi
- uart
- usb to uart controller (gen 1)
- usb to uart controller (gen 2)
- usb-serial
- usb-serial bridge controller
- usbuart
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