HOST SOFTWARE INTERFACE
6 – 4
COMMAND NAME COMMAND CODE PARAMETERS USED
b7 b6 b5 b4 b3 b2 b1 b0 FSC SN CSDH
Recalibrate 0 0 0 1 xxxx N N N N D
Read Sector(s) 0 0 1 0 0 0 L xNY Y Y Y
Read DMA 1 1 0 0 1 0 0 xNY Y Y Y
Write Sector(s) 0 0 1 1 0 0 L xNY Y Y Y
Write DMA 1 1 0 0 1 0 1 xNY Y Y Y
Write Verify Sector(s) 0 0 1 1 1 1 0 0 NY Y Y Y
Read Verify Sector(s) 0 1 0 0 0 0 0 xNY Y Y Y
Format Track 0 1 0 1 0 0 0 0 N N N Y Y
Seek 0 1 1 1 xxxx N N Y Y Y
Execute Diagnostic 1 0 0 1 0 0 0 0 N N N N D
Initialize Parameters 1 0 0 1 0 0 0 1 NYN N Y
Read Sector Buffer 1 1 1 0 0 1 0 0 N N N N D
Write Sector Buffer 1 1 1 0 1 0 0 0 N N N N D
Identify Drive 1 1 1 0 1 1 0 0 N N N N D
Set Features 1 1 1 0 1 1 1 1 YN N N D
Read Multiple 1 1 0 0 0 1 0 0 NY Y Y Y
Write Multiple 1 1 0 0 0 1 0 1 NY Y Y Y
Set Multiple Mode
1 1 0 0 0 1 1 0 NYN N D
TIMER VALUE TIME-OUT PERIOD
0Time-out disabled
1 - 240 (value * 5) seconds
241 - 251 ((value - 240) * 30) minutes
252 21 minutes
253 Vendor unique period = 10 hours
254 Reserved
255 21 minutes, 15 seconds