This website is an archived copy of "Chris's Acorns", now hosted by The Centre for Computing History as part of The Chris Whytehead collection.
To view the page in it's original forms without this header, append "?cfch-archive=orig" to the URL.

Simtec USB 1.1 Host/Device Interface

[Index by function ] [Index by Company ]

Simtec USB 1.1 Interface top

Simtec USB 1.1 Host/Device Interface (top)

Simtec USB 1.1 interface back

Simtec USB 1.1 Host/Device Interface (back)

Simtec USB 1.1 interface bottom

Simtec USB 1.1 Host/Device Interface (bottom)

The Simtec USB interface is a 16 bit podule with 2 host ports and a device port. The USB interface works with most Acorn RISC OS computers from the A300/400 via the A5000 to the RiscPC. and is compatable with RISC OS 3.1 and higher The main features of the USB interface are:

Dual function podule with 16bit EASI space compatability
Philips ISP1161A USB 1.1 compliant host controller with 2 port root hub
128KB of user re-programmable flash ROM. Reprogramming utility (!Snafu) supplied.
Two root hub host ports, with power switching ensuring compatability with the podule specification
Full over-currrent and ESD discharge protection for reliable operation during plugging and unplugging of devices
High/low speed multi-function device port with concurrent host and device operation (not supported in software)
Mature and proven hardware design.

The Universal Expansion card Fitting instructions are available HERE .

The documentation and software for the USB Interface are still available from the Simtec web site under legacy products