A PERIPHERIAL PROCESSOR DEVELOPMENT FOR EXTERNAL STORAGE AND UNIT CONTROL

N. P. Zateychuk, Yu. N. Mazurin, M. A. Papkov, M. P. Pakholkin
Vant. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1981. Вып.1. С. 25-27.

      This paper justifies a peripherial control processor development and indicates its main functions. It shows the communication multiplexor (MS-80) ability for the BESM-6 system/SM-4 data transfer in the start/stop mode at a peak rate of 700 КВ/sec and SM-4/100 MB Disc Drive exchange at a peak rate of 808 KB/sec. BESM-6/Disc Drive exchange time is estimated for a seguential request execution (56 msec) and maximum peripherial processor throughput is evaluated for simultaneous operation of BESM-6 interfaces and Disc Drive Controller, while combining access comands for different disc drives (up to 50 transfers/sec). A general block-diagram of BESM-6/External Storage communication through the peripherial processor is presented, followed by MS-80 multiplexor unit specifications.