Minecraft wiki entry for End_Portal_Frame, associated text: 1 Obtaining
1.1 Natural generation
2 Usage
2.1 Redstone
2.2 Light source
2.3 Note Blocks
2.4 Piston interactivity
3 Sounds
3.1 Generic
3.2 Unique
4 Data values
4.1 ID
4.2 Block states
5 History
6 Issues
7 Gallery
8 References
9 Notes