Functional Description
ATA Commands
24
Zeus Ultra DMA Solid State Drives
20
XXXXh
(a)
2
Buffer type (dual ported, multi-sector, with read cache)
21
XXXXh
(a)
2
Buffer size (in 512 byte increments)
22
XXXXh
(a)
2
Number of ECC bytes passed on Read/Write Long Sector commands
23-46
XXXXh
(a)
48
Firmware version and model number in ASCII
47
8001h
2
Maximum sector count = 1 on Read/Write Multiple commands
48
0000h
2
Double word not supported
49
2F00h
2
Capabilities: DMA not supported (bit 8); LBA supported (bit 9)
50
0000h
2
Reserved
51
0200h
2
PIO data transfer cycle timing mode
52
0200h
2
Single word DMA data transfer cycle timing mode (not supported)
53
0007h
2
Words 54 - 58 and 64 - 70 are valid
54
XXXXh
(a)
2
Number of current cylinders
55
XXXXh
(a)
2
Number of current heads
56
XXXXh
(a)
2
Number of current sectors per track
57
XXXXh
(a)
2
LSW of the current capacity in sectors
58
XXXXh
(a)
2
MSW of the current capacity in sectors
59
0000h
2
Current setting for block count = 1 for Read/Write Multiple commands
60-61
XXXXh
(a)
4
Total number of user addressable sectors in LBA Mode
62
0000h
2
Single word DMA data transfer cycle timing mode not supported
63
0000h
2
Multi-word DMA modes active; modes 0 - 2 supported
64
0003h
2
Advanced PIO modes supported (modes 3 and 4)
65
0078h
2
Minimum multi-word DMA transfer cycle time per word (ns)
66
0078h
2
Recommended multi-word DMA transfer cycle time per word (ns)
67
00F0h
2
Minimum PIO transfer without flow control
68
0078h
2
Minimum PIO transfer with IORDY flow control
69-255
0000h
388
Reserved
a.
Value varies depending on drive storage capacity.
Table 8.
SSD Identify Drive Information (Continued)
Word
Data
Total
Bytes
Description