title: Difference between const and data memory
body: <p>I'm developing a MSP430 project, I'm using IAR Embedded Workbench to verify the memory usage. The print below ilustrate the information given by the compiler:</p>
  
  <p><a href="https://i.stack.imgur.com/0V9sc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0V9sc.png" alt="enter image description here"></a></p>
  
  <p>My doubt is: what is the difference between data memory and const memory? And what is +2 absolute in data memory?</p>