> All you have to do is to start Pocket NES and proceed with button setup. Values
> displayed on the right are the key codes. Write them down and also write which
> key you pressed - e.g Calendar button is 0xc3 on Cassiopeia EM-500
>

Here you go for the 125 ...

direction pad
left 0x25
right 0x27
up 0x26
down 0x28

program buttons
menu 0xc3
calendar 0xc4
contacts 0xc5

side buttons
record 0xc2
start 0xc1

action control
up 0x26
down 0x28
in 0x86