Class of Microcomputers II at a University needs to design a computer system with an 8-bit address bus,   an 8-bit data...

Class of Microcomputers II at a University needs to design a computer system with an 8-bit address bus,

an 8-bit data bus and it uses isolated VO. It has:

1. 128 bytes of EPROM starting at address 00H (H meaning in hexadecimal) constructed using 64x4 chips;

1.  64 bytes of RAM constructed using 16x8 chips;

1.  an input device with a READY signal at address ABH;

1.  an output device with a READY signal at address CDH;

1.  a bidirectional input/output device with no READY signal at address EFH.

Please show the complete design for this system. (Choose an appropriate starting address for the RAM by yourself, and use a decoder to enable memory chips.) include all enable and load logic.

Note: Points will be given by evaluating the following components:

(1) Memory chips and structure (25%);

(2) Memory chips decoder (25%);

(3) Input & outpr.tt devices and their enable logic (25oh);

(4) Data bus and other wire connections (25% in which 5% is fbr the width of the connection wire between all pairs of components).