Because of i never used from RC5,I refer to my texas instrument data book,here is an abstract:
The RC5 protocol is a type of Manchester encoded data packet. Manchester data is unique in that a data is signified by a transition in the middle of the bit. A 1 is received by the MSP430 (after inversion by the IR sensor) as a high-to-low transition, and a 0 as a low-to-high transition.
The RC5 IR packet consists of 14 bits: two start bits (S1, S0), one control bit (C), five address bits (A4 to A0), and a six bit command code (C5 to C0). The entire 14-bit packet is received MSB first, starting with two start bits. Figure 2 shows the RC5 packet as received by the MSP430 after demodulation and inversion from the IR sensor. The start bits are always transmitted as 1. The control bit toggles whenever a new key is received. The five address bits represent 32 different potential addresses of the equipment for which the packet is intended.
The six command bits represent 64 commands that can be transmitted. The bit period for RC5 is
1.78 ms long, with half of that period high and the other half low. The duration for the complete
14-bit packet is approximately 25 ms.



Dear Russell i hope your problem be solved as soon as possible
I read your post times and times,but because of my bad english
i can't understand what you want to say?
Can you describe your problem a bit more?
Best Regards
Mehdi