vdu

• VDU Controller: It is a simple programmable SM which is responsible for generating synchronisation signals + blanking signals + frame-store addresses and reading the frame-store data.

frame-store

• 2D array of memory representing a pixel along with colour:
  • Each location has an address (in bytes or less)
  • Each pixel's data represents a colour typically separated into Red, Green and Blue
• A frame-store can occupy significant memory and pixels must be read/refreshed many times per second. This impacts the:
  • output rate to the display
  • frame-store RAM bandwidth