pe.fl09 - Practice exam ECE 367 (Print) Signature Due: Not...

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Practice exam ECE 367 Fall 2009 (Print) LAST Name FIRST Name Signature UID Due: Not Due. Just for practice. Fill in the blank(s) ( or write the short answer) for each problem. 1) There are several possible types of semiconductor memory. Name three. a) . b) . c) . 2) Find the value of the following: a) Two’s complement of $D8 = . b) The signed decimal value of $AE = . c) The signed decimal value of $7A = . 3) Name three of the CCR ±ags and explain their meaning: a) . b) . c) . 4) During the ²rst clock cycle when a machine op-code is executed the address in the PC register is transfered to the AR (address register.) Describe in one sentence (or phrase) what the address register must be. 5) If a 1MHz crystal is connected to pins 7 and 8 of the 68HC11 then: a) The frequency of the E-clock is: . b) The execution time for the ASLD instruction is: . c) The execution time for the PSHY instruction is: .
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ECE 367 Practice Exam Fall 2009 6) Give the full name of the type of addressing mode used in each on the following instructions: a) LDS $E5 . b) ROLA . c) LDAB $FFEA . 7) Give the address value stored in the PC register after each of the following instructions has executed. Assume for each case that the contents of the PC register is $E001 just prior to execution of EACH code slice. a) LDX $10
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pe.fl09 - Practice exam ECE 367 (Print) Signature Due: Not...

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