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Handling Multiple Devices
Interrupt Priority
Controlling device requests
KEN, DEN
Implementation of interrupt priory by using individual interrupt-request and acknowledge lines
Polled interrupts: Priority decided by the order in which processor polls the component (polls their status registers) vectored interrupts: Priority determined by the order in which processor tells component toput its code on the address lines (order of connection in the chain)
(a) Daisy chain
Daisy chaining of INTA: If device has not requested any service, passes the INTA signal to next device if necessitate service, does not pass the INTA, puts its code on the address lines Polled
what is the theory used to check whether a number is negative or positive?
Explain DOS function call with one illustration DOS function call In order to use DOS function calls, always place function number into register AH and load all other re
Assume that you are working in a software company as a programmer and a bank is your company's client. The Bank is a most popular and one of the leading banks in Malaysia. Your
Give brief summary of common aspects found in spreadsheets - It's made up of columns and rows; every row is identified by a number and every column is identified with a letter
The 68HC11 series is based on the Motorola 6800/1 programming instruction set and hence is a fairly simple 8 bit microprocessor. The internal structure of the 6800/1 is shown below
Testing, Testing, Testing
A keyword that states the types in a particular namespace can be referred to without requiring their full qualified type names. 'using' reserved word always come with namespace
examples of virtual memory
Determine the Example - "fork-join" module initial_fork_join(); reg clk,reset,enable,data; initial begin $monitor("‰g clk=‰b reset=‰b enable=‰b data=‰b", $time, cl
What are the uses of interrupts? Recovery from errors Debugging Communication among programs Use of interrupts in operating system
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