Question: ( 4 ) Which VHDL statement correctly produces the active - high chip enable signal ( cs ) of a memory block for the address

(4) Which VHDL statement correctly produces the active-high chip enable signal (cs) of a memory block for the address range 0xB000xBFF? Assume that A(i) is the i-th address bit (i =0,1,...,11). a. cs <= not((not A(11)) or A(10) or (not A(9)) or (not A(8))); 1 b. cs <= A(11) or A(10) or A(9) or A(8); c. cs <=(not A(11)) and A(10) and (not A(9)) and (not A(8)); d. cs <= A(11) and (not A(10)) and A(9) and A(8);

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