Title :
V60/V70 microprocessor and its systems support functions
Author :
Yano, Y. ; Koumoto, Yasuhiko ; Sato, Yoshikuni
Author_Institution :
NEC Corp., Kawasaki, Japan
fDate :
Feb. 29 1988-March 3 1988
Abstract :
Two advanced 32-bit microprocessors, the V60 and V70 ( mu PD70616 and mu PD70632, respectively), and their support functions for operating systems and high-reliability systems are described. Three operating system functions, namely, the virtual memory support functions, context-switch functions, and asynchronous trap functions are examined. A basic mechanism for high-reliability-system implementation, called FRM (functional redundancy monitoring), is discussed. FRM allows a system to be designed in which multiple V60s (or V70s) form a configuration in which one processor in the system acts as a master while the others act as monitors. An FRM board that uses three V60s in its redundant core is introduced.<>
Keywords :
microprocessor chips; 32 bit; V60/V70 microprocessor; asynchronous trap functions; context-switch functions; functional redundancy monitoring; mu PD70616; mu PD70632; operating systems; systems support functions; virtual memory support functions; CMOS technology; Control systems; Decoding; Memory management; Microcomputers; Microprocessors; Operating systems; Optimizing compilers; Registers; Transistors;
Conference_Titel :
Compcon Spring '88. Thirty-Third IEEE Computer Society International Conference, Digest of Papers
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-8186-0828-5
DOI :
10.1109/CMPCON.1988.4824
