17 Questions
How many T states are required for fetching one byte from an IO port?
3 T-States
During which cycle does the ALE pin go high at the first T state?
Opcode Fetch Cycle
Which signals indicate that it is a memory-related operation during data fetching?
IO/M and RD
What is the function of AD0-AD7 during the Opcode Fetch Cycle?
Fetch OP-code and store the lower byte of Program Counter
Which signals are set to S0=1 and S1=1 during the Opcode Fetch Cycle?
ALE and RD
What is the state of WR signal during memory read cycles?
High level
Which cycles require 4 T states from T1-T4?
Opcode Fetch Cycle
What is the purpose of the address lines in a bus?
To specify memory locations for data transfer
Which type of bus would be most suitable for transferring larger chunks of data simultaneously?
64-bit bus
In a computer system, what does the expansion bus facilitate?
Connection of additional components and devices
Which function do control lines in a bus serve?
Requesting and acknowledging signals
What is the primary role of a bus in a computer system?
Transfer information between different parts of the system
Which bus feature allows for synchronization of peripherals with the system clock?
Timing signals
What is the main difference between serial and parallel data transfer in buses?
Serial transfer transmits data bit by bit, while parallel transfer transmits multiple bits simultaneously
In a computer system, what is the purpose of data lines in a bus?
To carry information between source and destination
Which feature distinguishes buses of different bit sizes from each other?
Data lines
What function do control lines serve in a bus?
Request and acknowledge signals
Learn about the basic instruction cycle and the registers involved in each cycle, including Memory Address Register (MAR), Memory Buffer Register (MBR), and Program Counter (PC). Understand their functions and connections to the system bus for memory operations.
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