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A complex instruction set computer (CISC / ˈ s ɪ s k /) is a computer architecture in which single instructions can execute several low-level operations (such as a load from memory, an arithmetic operation, and a memory store) or are capable of multi-step operations or addressing modes within single instructions.
The National Semiconductor COP8 is an 8-bit CISC core microcontroller. COP8 is an enhancement to the earlier COP400 4-bit microcontroller family. COP8 main features are: Large amount of I/O pins; Up to 32 KB of Flash memory/ROM for code and data; Very low EMI; Many integrated peripherals (meant as single chip design)
A 32-bit version of the 801 was eventually produced in a single-chip form as the IBM ROMP in 1981, which stood for 'Research OPD [Office Products Division] Micro Processor'. [15] This CPU was designed for "mini" tasks, and found use in peripheral interfaces and channel controllers on later IBM computers.
Minimal instruction set computers (MISC) are commonly a form of stack machine, where there are few separate instructions (8–32), so that multiple instructions can be fit into a single machine word. These types of cores often take little silicon to implement, so they can be easily realized in an FPGA or in a multi-core form. The code density ...
The Intel MCS-51 (commonly termed 8051) is a single-chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems.The architect of the Intel MCS-51 instruction set was John H. Wharton.
STK520 – Adds support for 14 and 20, and 32-pin microcontrollers from the AT90PWM and ATmega family. STK524 – Adds support for the ATmega32M1/C1 32-pin CAN/LIN/Motor Control family. STK525 – Adds support for the AT90USB microcontrollers in 64-pin TQFP packages. STK526 – Adds support for the AT90USB microcontrollers in 32-pin TQFP packages.
An instruction set architecture (ISA) is an abstract model of a computer, also referred to as computer architecture.A realization of an ISA is called an implementation.An ISA permits multiple implementations that may vary in performance, physical size, and monetary cost (among other things); because the ISA serves as the interface between software and hardware.
The 9S08 (68HCS08 or S08 for short) is an 8-bit microcontroller (μC) family originally produced by Motorola, later by Freescale Semiconductor, [1] and currently by NXP, descended from the Motorola 6800 microprocessor. It is a CISC microcontroller.