Title :
A 66 MHz PA-RISC embedded controller with 80486DX-like bus interface
Author :
Wang, S.R. ; Yeh, A.T. ; Yang, R.K. ; Wang, H.Y. ; Chen, C.H. ; Lin, K.C.
Author_Institution :
Winbond Electron., Hsinchu, Taiwan
Abstract :
Describes the W89K, a 32-bit RISC embedded controller implemented by Winbond Electronics based on the PA-RISC architecture. This controller is designed to optimize the cost and performance of the system. An 80486DX-like bus interface was chosen to take advantage of low-cost multiple source logic chip sets for system design flexibility. Careful design trade-offs were made to achieve 66 MHz operating frequency with a 480/spl times/320 mil/sup 2/ die size. This paper describes the pipeline design, performance characteristics and design methodology of the W89K.<>
Keywords :
Hewlett Packard computers; integrated logic circuits; microcontrollers; pipeline processing; real-time systems; reduced instruction set computing; system buses; 32 bit; 320 mil; 480 mil; 66 MHz; 80486DX-like bus interface; PA-RISC architecture; W89K; Winbond Electronics; cost optimization; design methodology; design trade-offs; die size; embedded controller; low-cost multiple source logic chip sets; operating frequency; performance characteristics; performance optimization; pipeline design; system design flexibility; Control systems; Cost function; Decoding; Delay; Design methodology; Design optimization; Pipelines; Reduced instruction set computing; Registers; Silicon;
Conference_Titel :
Compcon Spring '94, Digest of Papers.
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-8186-5380-9
DOI :
10.1109/CMPCON.1994.282945
