Seagate ST730212DEG, Product Manual

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Lyrion Series IDE Product Manual, Rev. B 27
4.2.1 Identify Device command
The Identify Device command (command code EC
H
) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte (256 word) block of data, whose contents are as shown
in the following table.
Word ATA specification Value
0 General configuration information bit-significant information
Bit 15: 0 = ATA device
Bit 7: 1 = removable media
Bit 6: 1 = non-removable/fixed device
0040h
10–19 Serial number: (20 ASCII characters) Serial number
23–26 Firmware revision (8 ASCII character string) Firmware revision
27–46 Drive model number:
(40 ASCII characters, padded with blanks to end of string)
Model number
47
Bits 7-0: Maximum number of sectors transferred per interrupt on
Read Multiple/ Write Multiple commands
8010h
49 Capabilities
Bit 13: 1= Standby timer values specified in ATA-7 are supported
Bit 11: 1= IORDY supported
Bit 10: 0= IORDY may not be disabled
Bit 9 : 1= LBA supported
Bit 8 : 1= DMA supported
2B00h
53 Bit 2: 1= the fields reported in word 88 are valid
Bit 1: 1= the fields reported in words (70:64) are valid
0007h
59 Bit 8: 1= Multiple sector setting is valid
Bits 7-0: Current setting for number of sectors transferred during a
Read/Write Multiple command
0110h
60–61 Total number of user-addressable LBA sectors available 37E3E40h (30GB)
6FC7C80h (60GB)
63 Bit 10: 1= Multiword DMA mode 2 is selected
0= Multiword DMA mode 2 is not selected
Bit 9: 1= Multiword DMA mode 1 is selected
0= Multiword DMA mode 1 is not selected
Bit 8: 1= Multiword DMA mode 0 is selected
0= Multiword DMA mode 0 is not selected
Bit 2: 1= Multiword DMA mode 2 and below are supported
Bit 1: 1= Multiword DMA mode 1 and below are supported
Bit 0: 1= Multiword DMA mode 0 is supported
xxx7h
64 Bits 7-0: PIO modes supported 0003h
65 Minimum Multiword DMA transfer cycle time per word
Bits 15-0: Cycle time in nanoseconds 0078h
66 Recommended Multiword DMA transfer cycle time
Bits 15-0: Cycle time in nanoseconds 0078h
67 Minimum PIO transfer cycle time without flow control
Bits 15-0: Cycle time in nanoseconds 0078h
68 Minimum PIO transfer cycle time with IORDY flow control
Bits 15-0: Cycle time in nanoseconds 0078h