Western Design Center 65816

The W65816 (also: 65C816), a 16-bit microprocessor developed by the Western Design Center (WDC), is an expanded and compatible successor to the venerable MOS Technology 6502. The 65816 has two 16-bit index registers, a stack pointer, a 16-bit direct page register, and a 24-bit address bus.

Notable uses of the W65816

in the Apple IIGS (2.8 MHz)
in the Super Famicom/Super Nintendo video game consoles (3.58 MHz)
in the SuperCPU accelerators for the Commodore 64 and 128 (20 MHz)

References

This article was originally based on material from the Free On-line Dictionary of Computing, which is used under the GFDL.

Eyes, David; Lichty, Ron (1986). Programming the 65816 including the 6502, 65C02, and 65802. New York: Brady/Prentice Hall. ISBN 0-89303-789-3.

External links

W65C816S information from WDC (http://westerndesigncenter.com/wdc/w65c816s.cfm) – With link to datasheet in PDF
A 6502 Programmer's Introduction to the 65816 (http://www.defence-force.org/computing/oric/coding/annexe_2/) – By Brett Tabke, with instruction set summary from Creative Micro Designs.

List of 65xx(x)-based products from MOS Technology and the Western Design Center

Single board computers & microprocessors: MOS/CBM KIM-1 | 6501 | 6502 | 6507 | 6508 | 6509 | 6510/7501/8510 | 8500 | 8502 | W65C02 | W65816 | W65802
Support chips: 6520 PIA | 6522 VIA | 6526 CIA | 6529 SPIA | 6530 | 6551 ACIA | 6560 VIC | 6567 VIC-II | 6581 SID | 6845 | 7360 TED | 8563 VDC

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