It doesn't matter what other cameras use, look what's in the firmware.
#define NUM_DATA 2 tells how focal lengths are represented in the firmware table.
2 means that each focal length is displayed in two words. For this camera, it looks like this:
fl 4.3
ROM:FFFEE67C DCB 0xCC ; ¦ <--first word 0x10cc dec:4300 fl=4.3
ROM:FFFEE67D DCB 0x10
ROM:FFFEE67E DCB 0
ROM:FFFEE67F DCB 0
ROM:FFFEE680 DCB 0x64 ; d <--second word 0x64 dec:100
ROM:FFFEE681 DCB 0
ROM:FFFEE682 DCB 0
ROM:FFFEE683 DCB 0
fl 4.4
ROM:FFFEE684 DCB 0x71 ; q
ROM:FFFEE685 DCB 0x11
ROM:FFFEE686 DCB 0
ROM:FFFEE687 DCB 0
ROM:FFFEE688 DCB 0x64 ; d
ROM:FFFEE689 DCB 0
ROM:FFFEE68A DCB 0
ROM:FFFEE68B DCB 0
