Western Digital T13/2132-D - Manual (Page 80)

T13/2132-D Revision 3 June 23, 2010
68 Working Draft Enhanced Disk Drive - 4 (EDD-4)
8.27.2.3 Output Parameters
The following output parameters (see table 32), match the parameters defined in 8.27.1. No other return
parameters are necessary for this transport.
Table 32 — Output Parameters
Out Description
AL Undefined
AH
Value Description
00h No Error
01h AX = 50D7h not implemented
80h A condition has occurred which prevented successful command
completion. This may be due to a busy device, a timeout, a bus reset,
short packet, or other event. The host should issue a
Request-Sense-type command in the required protocol.
97h There is no support for the indicated logical drive, although Function
50D7h is recognized.
C3h PSSP is too short.
Remaining Values Reserved
All other registers Preserved
Carry flag 0b if AH is cleared to zero
1b if AH is 1through FFh.