The FASTBUS master module based on a 68020 microprocessor

Author

Arai, Y. ; Yasu, Y.

Author_Institution

KEK, Nat. Lab. for High Energy Phys., Ibaraki, Japan

Volume

35

Issue

1

fYear

1988

Firstpage

300

Lastpage

302

Abstract

A FASTBUS master module, 68K20FPI (68020 FASTBUS Processor Interface), which has the Motorola MC68020 32-bit microprocessor unit (MPU) and the MC68881 floating point coprocessor (FPCP), is presented. The 68K20FPI is intended to be used for a second-level trigger processor in a multiprocessor environment. It has a local-memory sunboard of 1-Mb static RAMs and a 512-kb ROM port, which are accessed from both the CPU and FASTBUS side. The SCSI (Small Computer Systems Interface) is adopted as a disk interface and also as a high-speed ( approximately 4-Mb/s) interface to other computers. The Ethernet interface is used for a communication line between the 68K20FPIs and a host computer. Two RS232C interfaces are used as terminal and host communication ports. A NIM level input and output are used for trigger purposes.<>

Keywords

computer interfaces; physics computing; 1 Mbits; 512 kbits; 68020 microprocessor; 68K20FPI; Ethernet interface; FASTBUS master module; MC68881 floating point coprocessor; Motorola MC68020 32-bit microprocessor unit; NIM level input; ROM port; RS232C interfaces; SCSI; Small Computer Systems Interface; disk interface; local-memory sunboard; second-level trigger processor; static RAMs; Circuits; Clocks; Debugging; Ethernet networks; Fastbus; Microprocessors; Programmable logic arrays; Random access memory; Read only memory; Sockets;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.12729

Filename

12729