What is the 'FF' and 'EA' part of the string? Which characters go with which commands?

Could someone send me a file that contains a page with the code written for each of the commands listed above? Or maybe even the common ones? Thanks.

I don't have a list, but i'll teach you how to fish. Each command is 4 bytes long (even though the protocol says otherwise). All numbering is HEX. Every command begins with the same 2 byte start code 45 B5. Next is the function code. This is the 2 digit number next to every command in the first post. For pause it's 00 for play it's 15. The last byte is the tough one. The protocol calls it the "reversal of the function". To get this number you need to subtract the function code from FF. So in our example:
pause: FF-00=FF
play: FF-15=EA

How do we subtract numbers from letters?
1.) Open up the calculator in Windows (Start>Run>Calc)
2.) Go to View>Scientific
3.) Check the Radio Button for HEX in the upper left corner
4.) Do your math.

Hope this helps.

Mark,
You have two different codes listed as "Upper Right". Which one is actually upper right and which is upper left? I know it has been a while since this thread was posted originally, but if you still have the documentation, I would like to archive it.

I'm almost positive 82 is upper left.

wow: Thanks for pointing that out: I must have copied it incorrectly (will edit original post) correct codes are:

82 upper right
86 upper LEFT (corrected code)

I made this last October, don't forget the 1ms delay that I mentioned above. You'll also need a null modem and a gender changer.

Table of functions

45 B5 00 FF 0D Pause/step
45 B5 01 FE 0D 1
45 B5 02 FD 0D 2
45 B5 03 FC 0D 3
45 B5 04 FB 0D 4
45 B5 05 FA 0D 5
45 B5 06 F9 0D 6
45 B5 07 F8 0D 7
45 B5 08 F7 0D 8
45 B5 09 F6 0D 9
45 B5 0A F5 0D 0
45 B5 0D F2 0D Slow
45 B5 12 ED 0D Power ON/Standby
45 B5 13 EC 0D Forward
45 B5 14 EB 0D Stop
45 B5 15 EA 0D Play
45 B5 16 E9 0D Display (Navi)
45 B5 19 E6 0D Review
45 B5 1B E4 0D Cancel
45 B5 20 DF 0D Setup
45 B5 21 DE 0D Enter
45 B5 22 DD 0D Return
45 B5 23 DC 0D Skip (back)
45 B5 24 DB 0D Skip (forward)
45 B5 25 DA 0D +10
45 B5 26 D9 0D T. Search
45 B5 27 D8 0D Audio
45 B5 28 D7 0D Subtitle
45 B5 29 D6 0D Angle
45 B5 2B D4 0D Repeat (VCR=Play Mode)
45 B5 31 CE 0D Door
45 B5 32 CD 0D Tab
45 B5 33 CC 0D Cursor
45 B5 34 CB 0D A
45 B5 35 CA 0D B
45 B5 36 C9 0D C
45 B5 37 C8 0D D
45 B5 38 C7 0D Return from Menu (resume)
45 B5 41 BE 0D Dimmer
45 B5 4D B2 0D Right
45 B5 4E B1 0D I/P Selector (resolution)
45 B5 51 AE 0D Left
45 B5 80 7F 0D UP
45 B5 81 7E 0D Down
45 B5 82 7D 0D Upper Right
45 B5 83 7C 0D Lower Right
45 B5 84 7B 0D Menu
45 B5 85 7A 0D Lower Left
45 B5 86 79 0D Upper Left
45 B5 92 6D 0D Power ON
45 B5 93 6C 0D Power OFF
45 B5 9F 60 0D HDMI
45 B5 DE 21 0D Title (Top Menu)
45 B5 EF 10 0D Clear
45 B5 F5 0A 0D Open/Close

So how about the HD-XA2? I understand it is bi-directional. How do we query it or otherwise get info from it for AMX/Crestron systems or the upcoming (well, one day) RTI XP-8 two-way system?