65802 Microprocessor

The 65802 (also: 65C802) is a 65816 CPU in a 6502 pinout compatible package. It was produced by Western Design Center (WDC Part# W65C802S) and GTE during the mid-late 80's. The chip was designed as a upgrade path from the 8-bit 6502/65C02 CPU to the new 65816 16-bit CPU. To do this, the 24-bit address bus (16MB memory space) of the 65816 was reduced to the 16-bit addressing (64k memory space) that the 6502/65C02 were able to access. All of the bank select registers, etc are still intact from the 65816 in the 65802 CPU's core, they just have no effect when used.

Typically, when hardware manufacturers were designing a project from the ground up, they used the more powerful 65816.