26
Momentus 5400.2 SATA Product Manual, Rev. C
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5AH
1Number of logical cylinders 16,383
2 ATA-reserved 0000H
3Number of logical heads 16
4Retired 0000H
5Retired 0000H
6Number of logical sectors per logical track: 63 003FH
7–9 Retired 0000H
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000H
21 Retired 0400H
22 Obsolete 0000H
23–26 Firmware revision (8 ASCII character string, padded with
blanks to end of string) x.xx
27–46 Drive model number: (40 ASCII characters, padded with
blanks to end of string) ST9120821AS
ST9100824AS
ST98823AS
ST96812AS
ST94813AS
ST93811AS
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple
and Write multiple (16) 8010H
48 Reserved 0000H
49 Standard Standby timer, IORDY supported and may be dis-
abled 2F00H
50 ATA-reserved 0000H
51 PIO data-transfer cycle timing mode 0200H
52 Retired 0200H
53 Words 54–58, 64–70 and 88 are valid 0007H
54 Number of current logical cylinders xxxxH
55 Number of current logical heads xxxxH