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X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 1e - (not a vector!) diskette params (base table) http://www.X-Hacker.org [<<Previous Entry] [^^Up^^] [Next Entry>>] [Menu] [About The Guide]
INT 1E - (NOT a vector!) DISKETTE PARAMS (BASE TABLE)
        default parameters at F000h:EFC7h in PC and most compatibles
SeeAlso: INT 41

Format of diskette parameters:
Offset  Size    Description
 00h    BYTE    4-bit step rate & 4-bit head unload times
 01h    BYTE    7-bit head load time & 1-bit DMA flag
 02h    BYTE    motor off time in clock ticks (36 to 38 typical)
 03h    BYTE    sector size in bytes (0->128, 1->256, 2->512, 3->1024)
 04h    BYTE    last sector number (8 or 9 typical)
 05h    BYTE    inter-sector gap size on read/write (42 typical)
 06h    BYTE    data transfer length (255 typical)
 07h    BYTE    inter-sector gap size on format (80 typical)
 08h    BYTE    sector fill on format (F6h typical)
 09h    BYTE    head-settle time ms (typical 25, 1.10->0, 2.10->15, 3.10->1)
 0Ah    BYTE    motor start-up time (1/8 secs) (typical 4, 2.10->2)

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