Browse Prior Art Database

Control Circuit for Hot Plugging a ROS Cartridge

IP.com Disclosure Number: IPCOM000061466D
Original Publication Date: 1986-Aug-01
Included in the Prior Art Database: 2005-Mar-09

Publishing Venue

IBM

Related People

Authors:
Combs, JL Hurd, JJ Timperman, MR [+details]

Abstract

The electromechanical problem of contact bounce due to insertion and removal of a ROS (read-only storage) cartridge in a socket in an active computer is prevented through providing computer interrupt signals to a microprocessor upon insertion or removal of the ROS cartridge from its socket, creating a power-on reset signal only after contact bounce should be eliminated, and preventing a further computer interrupt signal until a predetermined period after the power-on reset signal is created. When a ROS cartridge is inserted or removed from a socket in an active computer, a CARDPDI* signal goes low due to a terminal being grounded so that the output of an AND gate 1 goes low.