AT89RFD-11 User Guide
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7648A–USB–06/06
Section 1
Introduction
1.1
Features
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One MCU = 2 devices (mouse and mass storage controllers) and one USB hub
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No hub required
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USB 2.0 Full Speed compliance
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1 ms minimum Polling Interval
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Low Power bus-powered device
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Supported by all Microsoft O/S from Windows® 2000 and later
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256 MB Nand Flash memory supported (driver supports memories up to 1GB)
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High speed motion detection up to 20 ips (inches per second) and 8 G
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Up to 800 CPI resolution
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No mechanical moving parts
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ISP (In System Programming) to upgrade the firmware
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2K E2PROM to store parameters
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Project sources availble with royalty free licence agreement
1.2
Introduction
This design guides describes the design of a composite device (mouse & mass storage
device) using the AT89C5131A Atmel microcontroller and the Avago ADNS-3030 opti-
cal sensor. The firmware implementation section describes the firmware architecture to
implement a composite device with the mouse and the memory functions. The Appendix
contains the hardware implementation and the BOM of this reference design.
