Question: 2.5 A microcomputer has the following memory map: 4000 to 400F VO 2000 to 21FF RAM 0000 to OFFF ROM Determine the amount of ROM

2.5 A microcomputer has the following memory map: 4000 to 400F

2.5 A microcomputer has the following memory map: 4000 to 400F VO 2000 to 21FF RAM 0000 to OFFF ROM Determine the amount of ROM and RAM memory and the number of 10 ports in the system. 2.6 Determine which address lines are not used in the system shown in Figure 2.5. 2.7 Determine the amount of ROM (program storage), RAM, and mem- ory-mapped VO avallable in the system shown in Figure 2.6. 8 bits Memory address (hex) FFFF Not used 1000 Not used 54.5K RAM 0800-OFFF 2600 25FF RAM .5K 2000 1FFF 0800 07FF Not used 6K 0800 Program ROM 0300-07FF 0300 Vopage 0200 Stack 0100 0000 Temporary data Figure 2.6 A Memory Map RAM ROM 2K 0000 Figure 2.5 A Typical Memory Map

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