Western Digital T13/2132-D - Manual (Page 48)

T13/2132-D Revision 3 June 23, 2010
36 Working Draft Enhanced Disk Drive - 4 (EDD-4)
8.8 Read Buffer (FN 0Eh)
This function shall be used to read 512 bytes of data from the specified device's sector buffer.
Entry
AH 0Eh
DL BIOS device number
ES:BX Pointer to destination buffer in memory
Exit
Carry Clear Function completed without error
AH Shall be cleared to zero
Carry Set Function completed with an error
AH Shall be set to the error code