INT 1E - SYSTEM DATA - DISKETTE PARAMETERS
Note:   default parameter table at F000h:EFC7h for 100% compatible BIOSes
SeeAlso: INT 41

Format of diskette parameter table:
Offset  Size    Description
 00h    BYTE    first specify byte
                bits 7-4: step rate
                     3-0: head unload time (0Fh = 240 ms)
 01h    BYTE    second specify byte
                bits 7-1: head load time (01h = 4 ms)
                       0: non-DMA mode (always 0)
 02h    BYTE    delay until motor turned off (in clock ticks)
 03h    BYTE    bytes per sector (00h = 128, 01h = 256, 02h = 512, 03h = 1024)
 04h    BYTE    sectors per track
 05h    BYTE    length of gap between sectors (2Ah for 5.25", 1Bh for 3.5")
 06h    BYTE    data length (ignored if bytes-per-sector field nonzero)
 07h    BYTE    gap length when formatting (50h for 5.25", 6Ch for 3.5")
 08h    BYTE    format filler byte (default F6h)
 09h    BYTE    head settle time in milliseconds
 0Ah    BYTE    motor start time in 1/8 seconds