Compare and contrast between hardwired and microprogrammed CU

Difference between Hardwired and Microprogrammed Control Unit

S.No.Hardwired Control UnitMicroprogrammed Control Unit
1.The hardwired control unit induces the control signals required for the processor.The microprogrammed control unit induces the control signals through microinstructions.
2.Hardwired control unit is quicker than a microprogrammed control unit.Microprogrammed control unit is slower than a hardwired control unit.
3.It is hard to modify.It is easy to modify.
4.It is more expensive as compared to the microprogrammed control unit.It is affordable as compared to the hardwired control unit.
5.It faces difficulty in managing the complex instructions because the design of the circuit is also complex.It can easily manage complex instructions.
6.It can use limited instructions.It can generate control signals for many instructions.