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question write an initialization routine to set up a 68230 pirr with port a as an 8-bit double-buffered input port and
question 1 write a program to set up the pitt as a real-time clock with a frequency of 50 hz assume that the system
question 1 what is the difference betweena the ieee 488 bus and a pvt parallel interfaceb the ieee 488 bus and a
question how does the 68020 implement a coprocessor interface that is how does it manage to use the 68020 existing
question 1 in what way is the 68040 a radical departure from the 68020 and the 680302 in what way is the 68060 a
question when a cpu writes to the cache both the item in the cache and the corresponding item in the memory must be
question what is the maximum theoretical speedup ratio of a direct-mapped cache with the following parametersmain
question 1 why is the hamming error-correcting code mechanism not supplied as standard in pcs2 what are the main
question 1 describe how the 68451 mmu translates logical addresses into physical addresses2 the 68451 mmu employs a
question design an error-logging system for an error-detecting and -correcting memory whenever an error is detected a
question 1 what is a modified hamming code and what are its advantages over a standard hamming code2 hamming codes
question 1 what is the difference between fec and arq from the point of view of error correction and why can they both
question 1 why do 16-bit microprocessors with byte readwrite capabilities make life difficult for the designer of
question 1 what are the conditions necessary to implementa single error detectionb single error correctionc double
question 1 what would happen if a 68020 processor attempted to access a nonexistent floating point coprocessor
question 1 why cannot the 68000 be used in conjunction with the 68451 mmu to design true virtual memory systems2 why
question 1 what is the difference between a pmmu page descriptor and a table descriptor why are both these descriptors
question 1 how would you program the pmmus tc register to implement a two-level page system with a page size of 8
question 1 in what ways are the 68030 transparent address translation register rather like the 68451 mmu and in what
question 1 why is it much harder to design a data cache than an instruction cache2 to what extent do the 68020
question 1 the 68000 interrupt structure requires several external packages if its full facilities are to be used
question 1 suppose you require more than 192 interrupt vectors can you locate some of the additional vectors in the
question 1 a manual interrupt can be implemented by connecting irq7 to a push button each time the button is depressed
question 1 what does context switching mean and how can it be implemented making best use of the 68000 features2 write
question 1 why does the 68000 have a supervisor mode in contrast to many 8-bit microprocessors what instructions are