Ok, someone asked for it, don't know who though, but here are all the codes known so far. It's'the same mapscheme from Sam, but now extended with the Nxxx codes:
061 (Func L): SXY
::X::
0,1,2,4,6,8,A,C,E=None (R500,R700,N505,N707)
3=SOUND
5=AU OUT
7=AU OUT+SOUND
9=BEEP
B=BEEP+SOUND
D=AU OUT+BEEP
F=AU OUT+BEEP+SOUND
::Y::
0=None (R500,R700,N505,N707)
1=Nxxx Keychange
2=Katakana Input
3=Katakana Input+Nxxx Keychange
4=F2(Unknown function)
5=F2+Nxxx Keychange
6=F2+Katakana Input
7=F2+Katakana Input+Nxxx Keychange
8=MIC
9=MIC+Nxxx keychange
A=MIC+Katakana Input
B=MIC+Katakana Input+Nxxx keychange
C=F2+MIC
D=F2+MIC+Nxxx keychange
E=F2+MIC+Katakana Input
F=F2+MIC+Katakana Input+Nxxx keychange
062 (Func H): SXY
::X::
0=No MDLP
1=TimeMK+No MDLP (for Rxxx only?) (N505)
2=MDLP (R500,R700)
3=TimeMK
4=PGM+No MDLP
5=PGM+TimeMK+No MDLP (for Rxxx only?) (N707)
6=PGM
7=PGM+TimeMK
It ends here; 8,9,A,B,C,D,E,F are absent.
::Y::
0,2,4,6,8,A,C,E=None (R500,R700,N505,N707)
1,3,5,7,9,B,D,F=MTimer+P.D.M.
/** F2 is still unknown, possibly a keychange too for newer models(e.g. R909 or N1).
* Nxxx do have MDLP, so the No MDLP is for Rxxx only?
*/