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An 8051 chip could be sold as a ROM-less 8031, as the 8051's internal ROM is disabled by the normal state of the EA pin in an 8031-based design. A vendor might sell an 8051 as an 8031 for any number of reasons, such as faulty code in the 8051's ROM, or simply an oversupply of 8051s and undersupply of 8031s. Intel P8044AH microcontroller
Turbo51 is a compiler for the programming language Pascal, for the Intel MCS-51 (8051) family of microcontrollers. It features Borland Turbo Pascal 7 syntax, support for inline assembly code, source-level debugging, and optimizations, among others. The compiler is written in Object Pascal and produced with Delphi.
Amber Lake: ultra low power, mobile-only successor to Kaby Lake, using 14+ nm process, released in August 2018 (no architecture changes) [3] Whiskey Lake: mobile-only successor to Kaby Lake Refresh, using 14++ nm process, released in August 2018 (has hardware mitigations for some vulnerabilities) [3]
Ultra-small-footprint microsequencer-based 8051 core 312 Artix-7 LUTs. Quad-core 8051 version is 1227 LUTs. MCL51 Core: TSK51/52: Altium: Royalty-free Wishbone / Intel 8051: 8-bit Intel 8051 instruction set compatible, lower clock cycle alternative Embedded Design on Altium Wiki: based on the MIPS instruction set architecture: BERI: University ...
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 first Atmel flash memory microcontroller was based on the Intel 8051. [7] The controller executed an instruction for every clock cycle, as opposed to the 12 cycles that legacy 8051 parts required. [8] In 1994, Atmel purchased the EEPROM assets of Seeq Technology (LSI Corporation acquired the rest of Seeq in 1999).
The polarity of the RESET line was opposite (8051's having an active-high RESET, while the AVR has an active-low RESET), but other than that the pinout was identical. The AVR 8-bit microcontroller architecture was introduced in 1997. By 2003, Atmel had shipped 500 million AVR flash microcontrollers. [8]
In computer engineering, an orthogonal instruction set is an instruction set architecture where all instruction types can use all addressing modes.It is "orthogonal" in the sense that the instruction type and the addressing mode may vary independently.