Boots – shoes – and leggings
Patent
1987-12-18
1990-02-27
Eng, David Y.
Boots, shoes, and leggings
364254, 3642543, G06F 1200, G06F 1206, G06F 1208
Patent
active
049051377
ABSTRACT:
Page-mode-organized ROMs and associated circuitry are connected only to data and control buses in an information processing system. Addressing and reading of the ROMs are controlled by a processor without connecting the ROMs to an address bus. Selection of a particular ROM and of a particular page in the selected ROM is accomplished by applying a first control signal to the control bus and a first data word to the data bus. This first data word thus serves as the address of the selected page in the selected ROM. Then a particular byte of the selected page is selected by applying a second control signal to the control bus and a second data word to the data bus. This second data word serves as the address of the selected byte. Subsequently, in response to a third control signal, the selected byte is read out of the selected ROM and applied to the data bus.
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"Address Expansion Device", T. W. Glaser, IBM TD B, vol. 18, No. 12, 5/76, pp. 4118-4119.
Goodhue Gregory K.
Price William J.
Treadway Ronald L.
Willis Brian M.
Briody T.
Eng David Y.
Harrell Robert B.
Meetin R.
North American Philips Corporation Signetics Division
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