A mechatronics project based on general microcontroller has 8 bit data bus and 16 bit address...
A mechatronics project based on general microcontroller has 8 bit data bus and 16 bit address bus. It is required to have access to the following devices:
? 1 Rom of size 8 Kbytes
? 1 RAM of size 16 Kbytes
? 4 Analog to digital converter. Each one has a data bus of 1 byte and register space of 8 data bytes
? 1 Digital to analog converter that has 8 bits data.? 4 display LEDs and 4 different sound alarms.
Draw the address and memory map of the embedded system.(4+4+4+4+4 points)
Homework Answers
|
Device |
A15 |
A14 |
A13 |
A12 |
A11 |
A10 |
A9 |
A8 |
A7 |
A6 |
A5 |
A4 |
A3 |
A2 |
A1 |
A0 |
Hex Address |
|
ROM 8K |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Starting Address 0x0000 |
|
0 |
0 |
0 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
End Address 0x1FFF |
|
|
RAM 16K |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Starting Address 0x4000 |
|
0 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
End Address 0x7FFF |
|
|
ADC1 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Starting Address 0xC000 |
|
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
End Address 0xC007 |
|
|
ADC2 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
Starting Address 0xC008 |
|
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
1 |
End Address 0xC00F |
|
|
ADC3 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
Starting Address 0xC010 |
|
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
1 |
1 |
End Address 0xC017 |
|
|
ADC4 |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
0 |
0 |
0 |
Starting Address 0xC018 |
|
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
1 |
1 |
1 |
1 |
End Address 0xC01F |
|
|
DAC |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
0 |
Address 0xC020 |
|
LED/Alarm |
1 |
1 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
1 |
0 |
0 |
0 |
0 |
1 |
Address 0xC021 |
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