USB 1.1

USB 1.1

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USB 1.1 Device

The Arasan USB 1.1 Device IP Core is an USB 1.1 compliant device core with optional AHB, APB, PCI, or Custom bus interface. The USB 1.1 device core supports 12 Mbit/s in Full Speed (FS) mode and 1.5 Mbit/s in Low Speed (LS) mode. The USB 1.1 Device IP Core is highly configurable. The control endpoints and Serial Interface Engine (SIE) comprise of the basic building block of an USB 1.1 application. A design can be customized by adding the required number of bulk, interrupt, control, and isochronous endpoints. The control endpoint responsible for the configuration of the USB device, controlling of certain aspects of the device’s operation, issuing of commands, reading of descriptors, and assignment of unique address to a device. A ROM can be included to hold the operational and control data for the control endpoints. Each isochronous endpoint comes with a ping-pong buffer suitable for isochronous data transfers.

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