General question about digital design

[makanaky]

Hi ,

I have a few questions about digital IC design (in industry) :

1) Do we need to make make gate level desig ( Karnaugh maps .. etc ) ?
2) Do we need to make transistor level design (with sizing transistors ) ?
Or we just write HDL to describe the functional specifications

Also , is RTL same as HDL (Do they mean the same thing ) ?

Thanks in advance

 

[ljxpjpjljx]

HDL is hardware discription language , which RTL is register transmitted level

 

[pavanks]

Hi ,

I have a few questions about digital IC design (in industry) :

1) Do we need to make make gate level desig ( Karnaugh maps .. etc ) ?
2) Do we need to make transistor level design (with sizing transistors ) ?
Or we just write HDL to describe the functional specifications

Also , is RTL same as HDL (Do they mean the same thing ) ?

Thanks in advance

1) u do not have to do it manually, the frontend tool will do it in a very efficient way, but u need to give a HDL code to the tool along with the constraints and lib.
2) Transistor level design is not required as the frontend tool use the gates as a basic element from the lib.

verilog, vhdl and system verilog r all HDL which is tech independent.

Hope it helped.

 

[pyrch.michael]

HDL is hardware discription language , which RTL is register transmitted level

If I am not misunderstood RTL stands for Register Transfer Level and describes the transfer of data from register to register in a design. HDL, Hardware Descriptive Language, is a language to model hardware and is not the quite the same as RTL, however you can use an HDL to acheive an RTL design.

 

[pavanks]

We can put it as follows

HDL and RTL r two diff ways by which u can model ur logical design.
RTL was used long back when they were designing small logic.
Now as the design nowadays has got million instances u need HDL languages as it is easy to design the logic with many inbuilt applications.