PPT-8086 Interrupts

Interrupt Normal prog execution is interrupted by Some external signal or A special instruction in the prog In response to an interrupt the mp stops executing its normal prog amp. Bus Design. Khaled. A. Al-. Utaibi. alutaibi@uoh.edu.sa. Agenda. Buffering and . Latching. 8086 Bus . System. Bus Timing. Bus . Write . Cycle. Read Cycle. Ready and Wait States. 8086 Bus System . Design. Anurag Dwivedi. Let Us Revise. Micro-Controllers. A small . computer integrated . in . a single IC. Has I/O pins, . RAM and Memory. We Use . Atmega. 16. Software Used. CvAvr. : Editor and Compiler. J . Srinivasa. Rao. Govt. Polytechnic . Kothagudem. Khammam. 2. Microprocessor. Program controlled semiconductor device (IC) which fetches (from memory), decodes and executes instructions. . It is used as CPU (Central Processing Unit) in computers.. Khaled A. Al-Utaibi. alutaibi@uoh.edu.sa. Agenda. The 8086 Registers. The 8086 Memory Addressing. The 8086 Memory Organization. Data Registers. : . The data group consists of the . AX. , . BX. , . Interrupt Handling. David Ferry, Chris Gill. CSE 522S - Advanced Operating Systems. Washington University in St. Louis. St. Louis, MO 63130. 1. Why Interrupts?. Interrupts allow a currently executing process to be preempted. Fall 2009. Kipp Schoenwald. Stephen . Hunte. Joseph Storey. Outline. Interrupts . Vectors and Vector Table. Flow Chart. Applications. Example 1. Example 2. Thermistors. Theory. Applications. Opto-isolators. External. ?. . 8086 . vs. 8088. 16_bit Data Bus. 20_bit Address. 8_bit Data Bus. . . 20_bit Address. 8088. 8086. Only external bus of 8088 is . 8bit. Pin configuration:. 8086/8088 Busses. Address Bus. David Ferry, Chris Gill. CSE 422S - Operating Systems Organization. Washington University in St. Louis. St. Louis, MO 63130. 1. Why Interrupts?. Interrupts allow a currently executing process to be preempted. Hitesh Lad. Ch:1 . Introduction . to Microprocessors. . Typical requirements of architecture: Batch Processing , Multiprogramming , Time sharing & Multitasking Systems ; . Intel . 8086 architecture , Internal Operation , Addressing Modes , Intel 8086 Configurations-Minimum Mode and brief introduction of Maximum Mode , Intel 8086 System Connections , System Bus Timing . Opto. -isolators, . Triacs. , and Thermistors. Alex Buchanan. Aaron May. Peter Ngo. Reason for Interrupts. You might want a certain subroutine executed immediately after a request from an external device or from an internal program, providing certain conditions are met.. Fall 2014. Hadi Esmaeilzadeh. hadi@cc.gatech.edu. . Georgia Institute of Technology. Some slides adopted from Prof. . Milos . Prvulovic. Better Devices. Now SW, KEY can be read. Problem: several instructions needed to detect change. disable interrupts // Must finish put on queue of threads waiting for lock set guard to 0 call switch enable interrupts else value BUSY guard 0 LockRelease Why disable interrupts N Presented By. M. Mahesh . Babu. Introduced in 1978.. Having Total 40 Pins.. Having Address Bus of 20 bit.. Having Data Bus of 16 bit.. HMOS Microprocessor.. Consumes Low Power.. Clock Frequencies of 5,8 &10 . “Self-Belief | Self Discipline | Self Respect”. Department of Electronics and communication Engineering. Subject Name : MICROPROCESSOR AND MICROCONTROLLER. Presentation Title: INTERFACING THE LED USING 8086 MICROPROCESSOR.