The design of a FASTBUS interface to the 3081/E is presented. The interface consists of two boards, one specific to FASTBUS, the other usable by other interfaces to the 3081/E. The FASTBUS board is a dual-ported slave, permitting access from either of two cable segments. The general purpose board supports transfers to and from 3081/E memory and provides control of program execution. It also has se...Show More
The 3081/E is a second generation emulator of a mainframe IBM. One of it's applications will be to form part of the data acquisition system of the upgraded Mark II detector for data taking at the SLAC linear collider. Since the processor does not have direct connections to I/O devices a FASTBUS interface will be provided to allow communication with both SLAC Scanner Processors (which are responsib...Show More
The advent of the "personal" microcomputer provides a new tool for the debugging, calibration and monitoring of small scale physics apparatus; e.g., a single detector being developed for a larger physics apparatus. With an apropriate interface these microcomputer systems provide a low cost (1/3 the cost of a comparable minicomputer system), convenient, dedicated, portable system which can be used ...Show More
The 168/E is a SLAC developed microprocessor which emulates the IBM 360/370 computers with an execution speed of about one half of a IBM 370/168. These processors are used in parallel for the track finding and geometry programs of the LASS spectrometer. The system is controlled by a PDP-11 minicomputer via a three port interface which we call the Bermuda Triangle. The tape handling and downloading...Show More
