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Define the DMA controller interface.
A DMA controller interfaces along with a few peripherals which may request DMA. The controller chooses the priority of simultaneous DMA requests communicates along with the peripheral and the CPU, and gives memory addresses for data transfer. DMA controller generally used with 8088 is the 8237 programmable device.
The 8237 is actually a special-purpose microprocessor. Normally this appears as part of the system controller chip-sets. The 8237 is a 4-channel device type. All channels are dedicated to an exact peripheral device and able of addressing 64 K bytes section of memory.
8237 microprocessor
Q. D flip-flop - latch or delay element? The symbol for the clocked D flip-flop is shown in Figure (a), in which the two output terminals Q and ¯ Q behave just as in the SRFF,
need help on 2330 level 2 motors assignment
Cost and Profitability - Proposed KPIs KPI UOM Measures RepresentativeStandards Aggregate Technical & Commercial L
Factors of Contributing to Losses in Service Cables 1. Tapping of underground service cables: The service cables must be visible so that tapping of cables can be detected. U
The project involves comparisons between di erent sampling methods, di erent estimation methods, numerical results using samples selected from a synthetic nite population, and a
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explain the details of varnier type potentiometer
Spread Time (t s ) During spread time anode voltage falls from 10% I a to the on state voltage drop and anode current rises from 90% I a to final value of anode
What we have seen for practical power supplies applies to any electrical circuit provided it contains only linear components
LIFO (Last In First Out) stack is used in 8085.In this type of Stack the last kept information can be retrieved first.
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