USB11 Podule Introduction

The USB11-POD is a USB1.1 interface suitable Acorn computers, including the RISC PC, A7000 and A5000. The interface includes a HID (Human Input Device) class driver and there is a range of third party device drivers available.

This product has been discontinued, however the UNI-Pod replaces the functionality this product provided.

Hardware Description

The Simtec USB interface is a 16 bit podule with two host ports and a device port. As with all Simtec products, the card is designed and manufactured in-house to our usual high standards.

Main features of the USB11

• Dual function podule with 16 bit EASI space compatibility.
• Philips ISP1161A USB 1.1 compliant host controller with integral two port root hub.
• 128 kilobytes of user re-programmable flash ROM. Reprogramming utility supplied (!Snafu).
• Two root hub host ports, with power switching ensuring compatibility with the podule specification.
• Full over-current and ESD discharge protection for reliable operation during plugging and un-plugging of devices.
• High/low speed multi-function device port with concurrent host and device operation. (Not supported in software at this time).
• Mature and proven hardware design.

Software Description

The interface is supplied with a RISC OS port of Simtec's embedded USB stack supporting the following features:

• Integral USB hub driver that maintains and manages device connectivity across hubs, tracking all usb events.
• Supports all types of USB transactions.
• Full implementation of USB power management. Devices will only be enabled if there is sufficient power available on a port to power the device properly. This prevents accidental overloading of the USB power supply.
• Transparent loading and starting of drivers when new devices are detected.
• Task scheduler to handle multiple requests from multiple drivers, ensuring that operations are performed smoothly and in order.
• Bandwidth resource allocation that guarantees a level of service to a device and prevents devices from starting if sufficient bandwidth is not available.
• Multiple interface methods to the stack to support drivers written as modules, tasks, wimp tasks or stand-alone applications.
• Compatible with RISC OS 3.10 onwards.
• Multi-card support allowing concurrent use of more than one card in a computer.

Other pages

• Availability - Price and availability.
• Resources - Documentation and software resources for the USB11 Podule.
• Compatability - A list of known compatible products.
• Gallery - Images of the USB11 Podule.