ECET 330 DeVry Final Exam

o
o
o
o
Data bus
Address bus
Control bus
None of the above
Question 6.6. (TCO 2) The address bus is __________. (Points : 8)
o
o
o
o
bidirectional
unidirectional
able to be programmed to be either bidirectional or unidirectional
None of the above
Question 7.7. (TCO 3) To use JSR (or CALL) instruction, we must initialize _____ register. (Points : 8)
o
o
o
o
X
Y
PC
SP
Question 8.8. (TCO 3) Find the value of Register A for the following program.
LDAA #$55
EORA #$AA (Points : 8)
o A = $00
o A = $FF
o A = $7F
o None
Question 9.9. (TCO 3) The dollar sign ($) that precedes numbers in MC9S12 assembly language means that
(Points : 8)
o
o
o
o
o
it is a hexadecimal number.
it is a decimal number.
it is immediate mode.
All of the above
None of the above
Question 10.10. (TCO 3) The largest value (in hex) that can be loaded into Register A of HCS12 is (Points : 8)
o $08.
o $255.
o $65535.
o $FF.
Page 2
Question 1.1.(TCO 4) What addressing mode is used for the instruction, INX? (Points : 8)
o
o
o
o
o
Direct
Indexed
Inherent
Immediate
None of the above
Question 2.2.(TCO 5) When instruction, “jsr”, is executed, the return address is stored at (Points : 8)