USB97C100 Standard Microsystems Corporation, USB97C100 Datasheet - Page 2

• Manufacturer Part Number: USB97C100
• Description: USB97C100 Multi-endpoint Usb Peripheral Controller(not Recommended For Designs)
• Manufacturer: Standard Microsystems Corporation

GENERAL DESCRIPTION
The USB97C100 is a flexible, general purpose USB peripheral interface and controller ideally suited for multiple
endpoint applications. The USB97C100 provides an ISA-like bus interface, which will allow virtually any PC peripheral to
be placed at the end of a USB connection. Its unique dynamic buffer architecture overcomes the throughput
disadvantages of existing fixed FIFO buffer schemes allowing maximum utilization of the USB connection’s overall
bandwidth. This architecture minimizes the integrated microcontroller’s participation in the USB data flow, allowing back-
to-back packet transfers to block oriented devices. The efficiency of this architecture allows floppy drives to coexist with
other peripherals such as serial and parallel ports on a single USB link.
The USB97C100 allows external program code to be downloaded over the USB to allow easy implementation of varied
peripheral USB Device Classes and combinations. This also provides a method for convenient field upgrades and
modifications.
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SMSC DS – USB97C100
Page 2
Rev. 01/03/2001