OpenPA.net

PA-RISC Processors

PA-8500 (PCX-W)

Overview

The PA-8500 64-bit PA-RISC processor is the direct evolution of the PA-8000 and PA-8200 processors, leveraging their processing core but implementing large on-die L1 caches. Introduced in September 1998, the PA-8500 marked a break with the long-standing HP tradition of keeping large L1 caches off-chip. (The two years older PA-7300LC also included on-chip L1 caches, albeit much smaller). There were no other significant changes to the processing core, besides small increases to the TLB and BHT.

Details

Used in

References

HP Pumps Up PA-8x00 Family (archive.org mirror)
Linley Gwennap (October 1994: Microprocessor Report, Volume 10 Number 14). [Article reprint for vanished cpu.hp.com]
A 500  MHz 1.5  MByte Cache with On-Chip CPU (PDF, 141 KB)
Jonathan Lachman and J. Michael Hill (1997: ISSCC).
PA-8500: The Continuing Evolution of the PA-8000 Family (archive.org mirror)
Gregg Lesartre and Doug Hunt (1997: Proceedings of CompCon, IEEE CS Press). [Article reprint for vanished cpu.hp.com]

↑ up