ARM Cortex R4F User Manual Page 10

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© G.N. Khan ARM Processors/Cores – EE8205: Embedded Computer Systems Page: 10
Pipelined Instruction Fetch, Decode & Execute
Fetch
Decode
Execute
Read register(s) from Register Bank,
Shift and ALU operation,
Write register(s) back to Register Bank
Decompress thumb instruction, Decode
ARM instruction
Select registers
16-bit Instruction fetched
from memory
PC
PC - 2
PC - 4
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