6800
The 6800 (M6800) was an 8-bit microprocessor designed and marketed by Motorola in 1974, with an architecture and orthogonal instruction set influenced by Digital Equipment Corporation PDP-11. Opposed to Intel's 8080 and MOS Technology 6502, the 6800 was a big-endian machine, concerning the byte-order of 16-bit words in memory.
Contents
Architecture
The 6800 had two accumulators and a 16-bit index register, stack- and instruction pointer. The direct addressing mode allowed fast access the first 256 bytes of memory.
MC6800 registers and I/O lines [2]
See also
Manuals
External Links
6800
- Motorola 6800 from Wikipedia
- Motorola 6809 from Wikipedia
- Motorola 6800 Oral History Panel from The Computer History Museum
- 6800 microprocessor from The Computer History Museum
- 6800 MICROPROCESSOR Instruction Set Summary
- Motorola 6800 microprocessor architecture from CPU-World: Microprocessor news, benchmarks, information and pictures
- Motorola M6800 Microprocessor History
- 6800 Basics (pdf)
6800 Controller
- Motorola 68HC05 from Wikipedia
- Freescale 68HC08 from Wikipedia
- Hitachi HD6301 from Wikipedia.de (German) [4] [5]
References
- ↑ Die shot of Motorola 6800 microprocessor (MC6800L, C2 mask, 7742 date code) by Pauli Rautakorpi, Category:Motorola M6800 - Wikimedia Commons
- ↑ Motorola 6800 from Wikipedia
- ↑ Manuals hosted by the Internet Archive
- ↑ HD6301Y0 Datasheet(PDF) - Hitachi Semiconductor
- ↑ Hitachi HD6301V1 from Schachcomputer.info Wiki