DesignWare Cores USB 1.1 Hub Controller

Overview
The Synopsys DesignWare® USB Hub (UH01) is a set of synthesizable building blocks that ASIC/ FPGA designers can use to implement a complete USB Hub. The UH01 device is fully compliant with the USB 1.1 specification.

By utilizing Synopsys' production-proven UH01 product, designers can significantly reduce development time and engineering risk, and bring USB-based solutions to market faster. The RapidScript® utility enables designers to easily configure the device by setting the number of downstream ports. UH01 is available in Verilog, facilitating synthesis into any ASIC/FPGA technology.

Synopsys' UH01 product consists of the Hub Repeater and the Hub Controller. The Hub Repeater is responsible for connectivity setup and tear-down and supports exception handling such as bus fault detection/recovery and connect/disconnect detection. The Hub Controller provides the mechanism for host to hub communication. Hub-specific status and control commands permit the host to configure a hub and to monitor and control its individual downstream ports.

Highlights

• Silicon proven
• USB 1.1 compliant
• Available in Verilog
• Supports low-speed and full speed devices on downstream ports
• Integrated DPLL for clock and data recovery
  • User configurable options
  • 2 to 15 downstream ports.
  • Port power switching mode and over current protection.
  • Number of string descriptors
• Downstream device connect/disconnect detection
• Supports suspend/ resume for power management
• Supports one interrupt endpoint in addition to endpoint 0
• Approximately 12K gates, for four ports
• Test Environment includes USB compliance tests and Bus Functional Models

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