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WorksheetsComputer Architecture Unit 3
Total questions: 15
Worksheet time: 15mins
Example of user visible register
MDR
General Purpose Reg
IR
PC
Segment Register is a _____register
General Purpose
Address Reg
Data Reg
Example of control and staus register
General Purpose Reg
Data Reg
Address Reg
PC
Program Counter (PC) stores
Address
Data
Instruction
Instruction Reg (IR) stores
Address
Instruction
Data
Register and ALU communicates through
Address Bus
Data Bus
Internal CPU bus
The data read from memory is stored in to
MAR
IR
MDR
Address of memory location where we need to read or write is stored in
MAR
MDR
PC
After fetch cycle the CPU will execute which cycle?
Interrupt Cycle
Execute Cycle
Execute or Indirect Cycle
After indirect cycle the cpu will perform
Fetch cycle
Interupt Cycle
Execute Cycle
The direction of data flow in fetch cycle is
towards CPU
Towards Memory
Both Direction
The direction of data flow in data bus at interrupt cycle
towards cpu
towards memry
both direction
In interrupt cycle MAR get address from
PC
IR
Control Unit
In fetch cycle MAR gets address from
PC
Control Umit
MDR
In indirect cycle MAR gets address from
PC
Control Unit
MDR
