Boots – shoes – and leggings
Patent
1996-02-27
1996-12-24
Swann, Tod R.
Boots, shoes, and leggings
364DIG1, 364DIG2, 3642386, 395464, G06F 1208, G06F 1300
Patent
active
055881289
ABSTRACT:
A look ahead read buffer automatically senses the direction of the read sequence, sets the direction based on the current and previous read addresses, and prefetches data from memory to allow a Host device such as a CPU to read data out of the look ahead read buffer with no wait states, rather than accessing this data directly in slower memory that requires wait states. This read buffer is especially useful in applications such as display controllers that store and retrieve data in sequential format. The display memory may be partitioned into pages, and the read buffer will then determine and set the appropriate direction at page boundaries, and will not change direction within that page of display data. In addition, the read buffer inhibits reads that occur outside of the current page of display data, ignoring the effects of other reads that do not directly affect the display.
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Hicok Gary D.
Hildebrandt Eric A.
Zhu Micheal H.
Moy Jeffrey D.
Swann Tod R.
Thai Tuan
VLSI Technology Inc.
Weiss Harry M.
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