INT 13 U - ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. FIXED DISK - GET DEVICE CONFIGURATION AX = 1C0Ah DL = drive (80h,81h) ES:BX -> buffer for Drive Configuration Status Block (see #00260) Return: CF set on error CF clear if successful AH = status (see #00234 at AH=01h) Note: device configuration format can be found in IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. Fixed Disk Drive Adapter/A Technical Reference SeeAlso: AX=1C08h,AX=1C0Bh,AX=1C0Ch Format of ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. Drive Configuration Status Block: Offset Size Description (Table 00260) 00h BYTE 09h 01h BYTE number of words in block (06h) 02h BYTE flags 03h BYTE number of spare sectors per cylinder 04h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. total number of usable sectors 08h WORD total number of cylinders 0Ah BYTE tracks per cylinder 0Bh BYTE sectors per track