The document discusses the 6502/2A03 microprocessor and its characteristics. It has an 8-bit processor and 16-bit address bus with 8-bit data bus. The microprocessor has program counter, stack pointer, accumulator, X and Y index registers, and processor status register that are key components for processing instructions.

1. Mos 6502 / Ricoh 2A03

2. The Ricoh Difference
 Cost
 Sound
 No BCD

3. CPU
Overview
8 Bit Processor
16 Bit Address Bus
8 Bit Data Bus

4. CPU Memory Map

5. Registers
 Program Counter (PC) – 16 Bit
 Stack Pointer (SP) – 8 Bit
 Accumulator (A) – 8 Bit
 Index Register X (X) – 8 Bit
 Index Register Y (Y) – 8 Bit
 Processor Status (P) – 8 Bit