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DMA Hardware (8237 DMAC) :
1)Processor contain HOLD/HOLD Acknowledge lines to interact with 8237
o DMAC can achieve control of ISA bus by asserting HOLD
o Processor acknowledges with HLDA
2)DRQ4 services slave controller Priorities are set as fixed
o DRQ0 highest and DRQ7 lowest
o It set at POST
o It can be reprogrammed for rotating priority
3)ISA address/data/control lines are also linked (not shown)
o It can access control registers through ports
o Each channel has a page register associated with
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define accounting.briefly explain the accounting concepts which guide the accountant at the recording stage.
Any small project which can implement on any software. No need any external hardware approach.
How to write an assembly program The initial step in writing an assembly language program is to identify and study the problem. After studying the problem, choose the logical m
CAN U GIVE BRIEF THEORY
Write an assembly language program that defines symbolic constants for all seven days of the week
Program is written but has errors returning values from the procedure.
I need some guidance on which project to make in assembly language
Memory Interface Figure: Memory Modulation design The memory of a computer contain of number of memo
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