Apparatus for data transfer to microprocessors

Details Apparatus for data transfer to microprocessors Apparatus for data transfer to microprocessors

1979-03-13

1981-11-03

Shaw, Gareth D.

Boots, shoes, and leggings

G06F 300

Patent

active

042989302

ABSTRACT:
In order to permit alternate transfer of different sets of data to a microprocessor over the same input/output lines, a coupling-decoupling circuit includes series-connected diodes and inverters. The input/output lines are coupled to a diode matrix which is scanned line-by-line and determines the transfer of a set of primary data in a first time interval during which the admission of supplementary data from secondary data lines is blocked. In a second time interval, the rows of the diode matrix are all placed in the same logical state while the supplementary data is admitted by the coupling-decoupling circuit to the same input/output lines which received the primary data.

REFERENCES:
patent: Re27285 (1972-02-01), Dreyer et al.
patent: 3581286 (1971-05-01), Beausoleil
patent: 3760358 (1973-09-01), Isii et al.
patent: 3772651 (1973-11-01), Thyssens
patent: 4085403 (1978-04-01), Meier et al.
patent: 4155075 (1979-05-01), Weckenmann et al.
patent: 4160238 (1979-07-01), Weckenmann et al.
patent: 4164730 (1979-08-01), Weckenmann et al.

Affiliated with

Also associated with

Rating

Apparatus for data transfer to microprocessors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for data transfer to microprocessors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for data transfer to microprocessors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1067670