*[http://www.6502.org/documents/datasheets/synertek/synertek_hardware_manual.pdf Synertek SY650x hardware manual (178 pages)]
*[[Media:SY6500 - SY65C02 datasheet.pdf]] - features a detailed breakdown of 65C02 instructions
*[https://xotmatrix.github.io/6502/ xotmatrix] 6502 instruction set and detailed cycle-by-cycle breakdown
*[[Media:6502 (65xx) Microprocessor Instant Reference Card.pdf]]
*[https://www.nesdev.org/wiki/CPU_interrupts 6502 Interrupts]