Eight bit standard connector bus for sixteen bit microcomputer

Details Eight bit standard connector bus for sixteen bit microcomputer Eight bit standard connector bus for sixteen bit microcomputer

1978-04-24

1980-07-22

Nusbaum, Mark E.

Boots, shoes, and leggings

365 63, G06F 1300

Patent

active

042143020

ABSTRACT:
A microcomputer system uses a standardized S-100 bus with eight bit Data In and eight bit Data Out lines, but has a sixteen bit microprocessor with sixteen bit bidirectional data input/output terminals. An arrangement is provided to cross-connect the Data In lines and Data Out lines for one memory board compared to another, these two memory boards being accessed by the same address. A processor board containing the microprocessor connects the Data In and Data Out lines to the data input/output terminals by controllable unidirectional buffers which criss-cross the bytes on write compared to read operations.

REFERENCES:
patent: 3938098 (1976-02-01), Garlic
patent: 4016546 (1977-04-01), Bennett et al.
patent: 4057846 (1977-11-01), Cockerill et al.
Walker, "Comments on the S-100 Bus Extension", Byte Publications 1/79. _
Morrow et al., "Proposed Standard for the S-100 Bus" NCC 1978, Personal Computing Digest, 5/78, p. 305. _
Notari, "A 16 Bit System for the S-100 Bus that Holds its Own Against a Mini", Interface Age, 7/77, pp. 72, 73. _

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