NIC registers Description

Newsgroups	comp.programming
Date	2017-05-28 15:10 -0700
Message-ID	<ed2dec2a-e632-4c96-866c-1fadacc4a6ff@googlegroups.com> (permalink)
Subject	NIC registers Description
From	Ilias Abrams <iliasabrams@gmail.com>

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Hello to everyone, 
I am interesting to understand some thing on C low level programming. 
I am reading for example NIC datasheet description of registers (Realtek) 
I was wondering If anyone can explain me how a software programmer can use these information of a NIC registers: 

Interrupt Status 
(Offset 003Eh-003Fh, R/W) 
Bit R/W Symbol Description 
15 R/W SERR    System Error: This bit is set to 1 when the RTL8169 signals a 
               system error on the PCI bus. 

The offset is referred to memory right? but how a software can use this? 
The Bit field and the symbol how can an software developer use it? 
The symbol is like a variable? 
Drivers use these symbols to "talk" to the NIC? 

thanks!

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NIC registers Description Ilias Abrams <iliasabrams@gmail.com> - 2017-05-28 15:10 -0700
  Re: NIC registers Description JJ <jj4public@vfemail.net> - 2017-05-29 12:45 +0700

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