24-04-2012, 04:30 PM
ES C263: MICROPROCESSOR PROGRAMMING AND INTERFACING
[attachment=20729]
Intel 8086 Microprocessor
Key Features:
Released by Intel in 1978
Produced from 1978 to 1990s
A 16-bit microprocessor chip.
Max. CPU clock rate :
5 MHz to 10 MHz
Instruction set: x86-16
Package: 40 pin DIP
The 8086 gave rise to
the x86 architecture of Intel's future processors.
Common manufacturer(s): Intel, AMD, NEC, Fujitsu, Harris (Intersil), OKI, Siemens AG, Texas Instruments, Mitsubishi.
The Intel 8088, released in 1979, was a slightly modified chip with an external 8-bit data bus and is notable as the processor used in the original IBM PC.
Intel 8086 Process Technology
It was implemented using depletion-load nMOS circuitry with approximately 20,000 active transistors (29,000 counting all ROM and PLA sites).
It was soon moved to a new refined nMOS manufacturing process called HMOS (for High performance MOS) that Intel originally developed for manufacturing of fast static RAM products.
This was followed by HMOS-II, HMOS-III versions, and, eventually, a fully static CMOS version for battery-powered devices, manufactured using Intel's CHMOS processes.
BIU and EU
BIU (bus interface unit) sends out addresses, fetches instructions from memory, reads data from ports and memory, and writes data to ports and memory. In other words, the BIU handles all transfers of data and addresses on the buses for the execution unit.
EU (execution unit) of the 8086 tells the BIU where to fetch instructions or data from, decodes instructions, and executes instructions.
[attachment=20729]
Intel 8086 Microprocessor
Key Features:
Released by Intel in 1978
Produced from 1978 to 1990s
A 16-bit microprocessor chip.
Max. CPU clock rate :
5 MHz to 10 MHz
Instruction set: x86-16
Package: 40 pin DIP
The 8086 gave rise to
the x86 architecture of Intel's future processors.
Common manufacturer(s): Intel, AMD, NEC, Fujitsu, Harris (Intersil), OKI, Siemens AG, Texas Instruments, Mitsubishi.
The Intel 8088, released in 1979, was a slightly modified chip with an external 8-bit data bus and is notable as the processor used in the original IBM PC.
Intel 8086 Process Technology
It was implemented using depletion-load nMOS circuitry with approximately 20,000 active transistors (29,000 counting all ROM and PLA sites).
It was soon moved to a new refined nMOS manufacturing process called HMOS (for High performance MOS) that Intel originally developed for manufacturing of fast static RAM products.
This was followed by HMOS-II, HMOS-III versions, and, eventually, a fully static CMOS version for battery-powered devices, manufactured using Intel's CHMOS processes.
BIU and EU
BIU (bus interface unit) sends out addresses, fetches instructions from memory, reads data from ports and memory, and writes data to ports and memory. In other words, the BIU handles all transfers of data and addresses on the buses for the execution unit.
EU (execution unit) of the 8086 tells the BIU where to fetch instructions or data from, decodes instructions, and executes instructions.