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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