A $1$ Kbyte memory module has to be interfaced with an $8$-bit microprocessor that has $16$ address lines.The address lines $A_0$ to $A_9$ of the processor are connected to the corresponding address lines of the memory module. The active low chip select $\overline{CS}$ of the memory module is connected to the $y_5$ output of a $3$ to $8$ decoder with active low outputs. $S_0,\; S_1$ and $S_2$ are the input lines to the decoder, with $S_2$ as the $MSB$. The decoder has one active low $\overline{EN_1}$ and one active high $EN_2$ enable lines as shown below. The address range(s) that gets mapped onto this memory module is (are)
- $3000_H$ to $33FF_H$ and $E000_H$ to $E3FF_H$
- $1400_H$ to $17FF_H $
- $5300_H$ to $53FF_H$ and $A300_H$ to $A3FF_H$
- $5800_H$ to $5BFF_H$ and $D800_H$ to $D8FF_H$