Browse Prior Art Database

Bus Oriented Packaging Scheme

IP.com Disclosure Number: IPCOM000077769D
Original Publication Date: 1972-Sep-01
Included in the Prior Art Database: 2005-Feb-25
Document File: 2 page(s) / 41K

Publishing Venue

IBM

Related People

Gravelle, DB: AUTHOR [+3]

Abstract

Identical circuit cards may be addressed and supplied with data by decoding addresses on a board, having data buses and address lines into which the circuit cards are plugged. Shown is a circuit board 10 having sockets 0, 1, 2 through n, into which identical circuit cards may be plugged. Typically, 64 such sockets maybe provided. A plurality of pairs of a address lines 2/o/ and 2/o/, 2/1/ and 2/1/ through 2/n/ and 2/n/ and provided, one pair for each binary digit necessary to give a unique binary address for each card, e.g., 4 pairs. One of the address lines for each pair represents a 1 and the other a 0. One of the lines of each pair is connected to each socket to form the address for each card. All of the address positions must decode true for a card to be selected.

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Bus Oriented Packaging Scheme

Identical circuit cards may be addressed and supplied with data by decoding addresses on a board, having data buses and address lines into which the circuit cards are plugged. Shown is a circuit board 10 having sockets 0, 1, 2 through n, into which identical circuit cards may be plugged. Typically, 64 such sockets maybe provided. A plurality of pairs of a address lines 2/o/ and 2/o/, 2/1/ and 2/1/ through 2/n/ and 2/n/ and provided, one pair for each binary digit necessary to give a unique binary address for each card, e.g., 4 pairs. One of the address lines for each pair represents a 1 and the other a 0. One of the lines of each pair is connected to each socket to form the address for each card. All of the address positions must decode true for a card to be selected. Strobe lines 1, 2 through n are connected to each socket. The strobe lines are used to select, e.g., one of four registers on a card. Data lines 2/o/, 2/1/ through 2/n/ provide the information to be supplied to a particular register on a particular card, through use of the strobe lines and address lines, respectively.

This arrangement is specially adapted for use on an integrated circuit tester capable of testing different integrated circuits under different conditions, or other situations in which adaptive manipulation of electronic components is to be carried out.

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