HDMI 1.3a specifications

```
please include in the Wiki. 

```

Original issue reported on code.google.com by `ltvander...@gmail.com` on 14 Jan 2013 at 3:35

Attachments:
- [CEC_Specs.pdf](https://storage.googleapis.com/google-code-attachments/cec-arduino/issue-4/comment-0/CEC_Specs.pdf)
