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Questions and Answers
What is the first step in the given process?
What is the first step in the given process?
- Send the SOC command to the ADC
- Configure the 8155 I/O ports
- Draw the design (correct)
- Assign the I/O port addresses
What is the control word value for the 8155 I/O port configuration?
What is the control word value for the 8155 I/O port configuration?
- 00h
- 20h
- 13h
- 0Ah (correct)
Where is the address of the 8155 control register located?
Where is the address of the 8155 control register located?
- 13h
- 00h
- 20h
- 10h (correct)
Which port pin of Port C is the SOC input of the ADC connected to?
Which port pin of Port C is the SOC input of the ADC connected to?
What is the purpose of the BF signal in the 8155-ADC communication?
What is the purpose of the BF signal in the 8155-ADC communication?
How does the 8085 know when the data is ready to be read from the ADC?
How does the 8085 know when the data is ready to be read from the ADC?
What is the function of the STB signal in the handshake mode for port A of the 8155?
What is the function of the STB signal in the handshake mode for port A of the 8155?
Which signals from port C are used by port B when configured in the handshake mode?
Which signals from port C are used by port B when configured in the handshake mode?
What does the BF signal indicate in the handshake mode of the 8155?
What does the BF signal indicate in the handshake mode of the 8155?
How can a 3 to 8 decoder be used in interfacing with the 8155?
How can a 3 to 8 decoder be used in interfacing with the 8155?
What is differentiated by the RD and WR signals in the control register & Status register of the 8155?
What is differentiated by the RD and WR signals in the control register & Status register of the 8155?
How does the INTR signal function in interfacing between the 8155 and 8085 microprocessor?
How does the INTR signal function in interfacing between the 8155 and 8085 microprocessor?
How many address lines are needed to decode the control register and I/O ports of the 8155 microprocessor?
How many address lines are needed to decode the control register and I/O ports of the 8155 microprocessor?
In the 8205 decoder, which enables need to be active to enable the decoder?
In the 8205 decoder, which enables need to be active to enable the decoder?
Which component is responsible for interfacing the 8155 microprocessor with the 8085?
Which component is responsible for interfacing the 8155 microprocessor with the 8085?
What type of commands can be given to the 8155 microprocessor for configuration?
What type of commands can be given to the 8155 microprocessor for configuration?
Where are the commands for the 8155 microprocessor stored?
Where are the commands for the 8155 microprocessor stored?
What is another term used for a command or instruction given to the 8155 microprocessor?
What is another term used for a command or instruction given to the 8155 microprocessor?
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