#Rc6 remote control code
#Rc6 remote control tv

If the beginning of the bit is LOW, then this bit is 0 otherwise it is 1. The other method is to see how the bit begins or ends. If this change is LOW to HIGH, then the bit is a ZERO, otherwise the bit is an ACE.

#Rc6 remote control code

This is the characteristic of the Manchester code modulation. In the previous example notice that between the red thin vertical lines (which separates the transmitted bits), right in the middle, the bit always changes polarity - It turns either from HIGH to LOW or from LOW to HIGH. The first way is to identify the polarity switch in the middle of the bit transmission. Similarly to the RC5 protocol, there are two ways to identify zeros and aces. Let's see a typical transition with the RC6 protocol. There is no published list for the RC6 protocol commands, but i suppose that the basic commands are similar to the RC5 protocol, as described in wikipedia (?). This command can be anything like volume up, volume down, switch channel, exit DVD disk etc.

#Rc6 remote control tv

The DVD player and the TV sets correspond to the same address list of the RC5 protocol as described in wikipedia, so i can guess that the same address list applies to this protocol (?) I could not find a complete list for these bits. This way, the TV remote control will not interfere with the DVD player. These bits are to determine to which device the signal addresses to. The next 8 bits belong to the address of the signal. So, if the toggle bit is 0 (LOW to HIGH transition), the LOW duration will be 895 uSec and the HIGH duration will be another 895 uSec, thus making the toggle bit 1.79 mSec long. It works exactly the same way as i explain in the RC5 theory page, but the length of the toggle bit of the RC6 is double the length of a normal bit. It seems that the RC6 has the same address list as the RC5Similarly to the RC5 protocol, the RC6 protocol has a toggle bit to separate a long key-press from a double-key press. I checked several remote controls and these bits were always 0. I could not find more details about these bits. There are 3 bits which appear to be always 0 (LOW to HIGH transition). The next 3 bits are probably identical to the field bit of the RC5 protocol. Unlike the RC5 protocol, the RC6 protocol defines bit 1 as a transition from HIGH to LOW After this long pulse, another start bit follows with normal period length. The first bit has 4 times the length of a normal bit, that is 2.685 mSec ON time and 895 OFF time. The RC6 protocol has 2 starting bits, one long and one short. The start bit is the first bit being transmitted by the transmitter. Modulation type: Manchester code (bi-phase) - HIGH to LOW for ACE (1), LOW to HIGH for ZERO (0)Д«it period (transmission clock): 895 uSec Here are the specifications of this RC6 protocol: Actually, the two Phillips remote controls that i tested had precisely this configuration. But i also discovered that the most common RC6 protocol is the one that has two start bits, three field bits, one long toggle bit and 8+8 address and command bits. Searching around the net i discovered that there are several types of RC6 protocols, with differences in the mode, address and command lengths. If you don't know how the RC5 protocol works, i strongly suggest that you read first the operation of the RC5 protocol before you go on with the RC6. Now the good news: Don't worry, this page has enough info to understand the commercial RC6 protocol and encode/decode your own projects. Therefore, the info that will follow comes mainly from reverse-engineering and information that i gathered around the net from other people. Unfortunately, no matter how hard i searched, no matter how many application notes and chip datasheets i opened, no matter how many forums and site administrators i contacted, i was unable to find official papers regarding the RC6 protocol. Let's start with the bad news first: It seems that Philips -along with other companies- don't want or don't care to share the specifications of the IR protocol that each one uses, which rises up some questions. PAGE 1 of 2 - The Philips RC6 IR remote control protocol specifications The Philips RC6 IR Remote Control Protocol Home Projects Experiments Circuits Theory BLOG PIC Tutorials Time for Science Home Contact Projects Experiments Circuits Theory BLOG PIC Tutorials Time for Science RSS Terms of services Privacy policy