USB7056数据手册集成电路（IC）的控制器规格书PDF

描述 Description

The Microchip USB7056 PD SmartHub™ IC is a low-power, OEM configurable, USB 3.1 Gen 1 hub controller with 6 downstream ports and advanced features for embedded USB applications. The USB7056 is fully compliant with the Universal Serial Bus Revision 3.1 Specification and USB 2.0 Link Power Management Addendum. The USB7056 supports 5 Gbps Super-Speed (SS), 480 Mbps Hi-Speed (HS), 12 Mbps Full-Speed (FS), and 1.5 Mbps Low-Speed (LS) USB downstream devices on all enabled downstream ports.

Along with the UPD350 Power Delivery transceiver or equivalent device supporting PD, the USB7056 supports USB Power Delivery 3.0 with up to 100W of power on the upstream port.  The one USB Type-C downstream port only supports up to 15W of power.  The other 5 parts support legacy Type A - 3 USB3.1 Gen1 and 2 USB2.0 only ports; no external multiplexer is required for Type-C support.  The USB7056 is USB-IF certified as a Power Delivery enabled USB3.1 Gen1 hub (TID1212).

A SmartHub IC is defined as a USB hub that integrates system levels functions typically associated with a separate MCU or processor.  The USB7056 SmartHub IC enables communication to other peripherals in addition to USB. This I/O Bridging capability allows the host to seamlessly interface to peripherals via I2C, SPI or GPIOs over USB.  The USB7056 also enable a downstream device to take control of the host system by swapping roles and becoming the host port. The USB7056 can also switch between two different hosts if required. This role changing technology is called FlexConnect and can be initiated through hardware or software commands.

The USB7056 also supports the legacy USB speeds (HS/FS/LS) through a dedicated USB 2.0 hub controller that is the culmination of six generations of Microchip hub feature controller design and experience with proven reliability, interoperability, and device compatibility. The SuperSpeed hub controller operates in parallel with the USB 2.0 controller, decoupling the 5 Gbps SS data transfers from bottlenecks due to the slower USB 2.0 traffic.

The USB7056 supports downstream battery charging with integrated battery charger detection circuitry supporting the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. The USB7056 provides the battery charging handshake and supports the following USB-IF BC1.2 charging profiles: DCP: Dedicated Charging Port (Power brick with no data); CDP: Charging Downstream Port (1.5A with data); SDP: Standard Downstream Port (0.5A with data); Custom profiles loaded via SPI EEPROM or OTP.

MPLAB Connect Configurator, Microchip’s proprietary software utility, can be used to program On-chip One Time Programmable (OTP) ROM for the USB7056 which stores required register settings to ensure the desired start up configuration at power on. All LED, GPIOs and port control signal pins are under firmware control, allowing for maximum operational flexibility. However, for even more simplicity, the USB7056 can be configured through a series of external low-cost resistor bootstraps. A handful of bootstap pins are available on the USB7056 to enable standard configurations for GPIOs and downstream ports. No OTP programming required. 

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简介

USB7056属于集成电路（IC）的控制器。由制造生产的USB7056控制器该系列产品主要用于在采用不同通信协议和/或信令方法的端点之间提供信息连接。示例包括将 I2C 总线连接到 UART，将 USB 连接到 I2C、SPI、以太网或 UART、以太网 MAC 和 PHY 等的器件。此外，还包括用于通过为点对点通信设计的接口建立多路连接的器件，例如 USB 集线器控制器。