Seagate ST760211DE ユーザーズマニュアル
Lyrion Series IDE Product Manual, Rev. E
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.
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
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
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
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
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
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)
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
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
Bits 15-0: Cycle time in nanoseconds
0078h
66
Recommended Multiword DMA transfer cycle time
Bits 15-0: Cycle time in nanoseconds
Bits 15-0: Cycle time in nanoseconds
0078h
67
Minimum PIO transfer cycle time without flow control
Bits 15-0: Cycle time in nanoseconds
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
Bits 15-0: Cycle time in nanoseconds
0078h