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 ADAPTER CONFIGURATION AX = 1C0Bh ES:BX -> buffer for Controller Configuration Status Block (see #00261) Return: CF set on error CF clear if successful AH = status (see #00234 at AH=01h) SeeAlso: 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. Controller Configuration Status Block: Offset Size Description (Table 00261) 00h BYTE E9h 01h BYTE number of words in block (06h) 02h WORD unused (0000h) 04h DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. controller microcode revision level 08h 2 WORDs unused (0000h)