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USB97C201 Datasheet(PDF) 6 Page - SMSC Corporation |
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USB97C201 Datasheet(HTML) 6 Page - SMSC Corporation |
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6 / 59 page  SMSC DS – USB97C201 Page 6 Rev. 03/25/2002 PRELIMINARY 1.0 GENERAL DESCRIPTION The USB97C201 is a USB2.0 Mass Storage Class Peripheral Controller intended for use with standard ATA hard drives and standard ATAPI-5 devices. The device consists of a USB 2.0 PHY and SIE, buffers, Fast 8051 microprocessor with expanded scratchpad and 768 of program SRAM, and an ATA-66 compatible interface. Provisions for external Flash Memory up to 64K bytes for program storage is provided. Internal 768 Bytes of program SRAM are also provided.. This internal SRAM is used for program storage to implement program upgrade via USB download to “boot block” Flash program memory, if desired. Eight GPIO pins are provided for controlling external power control elements and sensing specialized drive functions. Provisions are made to allow dynamic attach and re-attach to the USB bus to allow hot swap of drives to be implemented. |
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