Silicon Systems SiliconDrive SSD-P16G(I)-3100 Manual de usuario Pagina 63
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ATA REGISTERS SSD-PXXX(I)-3100 DATA SHEET
SILICONSYSTEMS PROPRIETARY
This document and the information contained within it is confidential and proprietary to SiliconSystems, Inc.
All unauthorized use and/or reproduction is prohibited.
3100P-06DSR PAGE 53 FEBRUARY 2, 2009
DRIVE/HEAD REGISTER
The Drive/Head register is used by the host and the device to select the type
of addressing (CHS or LBA), the drive letter, and either bits 3-0 of the head
number in CHS mode or logical block number bits 27-24 in LBA mode.
The Drive/Head register is used by the host to specify one of a pair of ATA
drives present in the platform.
Table 40: Drive/Head Register
Operation
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Read/Write 1 LBA 1 DRV HS3
LBA27
HS2
LBA26
HS1
LBA25
HS0
LBA24
Default
Value
10100000
Bit(s) Description
6 LBA. Selects between CHS (0) and LBA (1) addressing mode.
4 Drive Address (DRV). Indicates the drive number selected by the
host, either 0 or 1.
3-0 HS3 to 0. Indicates bits 3-0 of the head number in CHS addressing
mode or LBA bits 27-24 in LBA mode.
• CHS to LBA conversion: LBA = (C x HpC + H) x SpH + S -1
• LBA to CHS conversion:
¶ C = LBA/(HpC x SpH)
¶ H = (LBA/SpH) mod (HpC)
¶ S = (LBA mod(SpH)) + 1
...where:
¶ C is the cylinder number
¶ H is the head number
¶ S is the sector count
¶ HpC is the head count per cylinder count
¶ SpH is the sector count per head count (track)
- DATA SHEET 1
- REVISION HISTORY 2
- TABLE OF CONTENTS 3
- LIST OF FIGURES 7
- LIST OF TABLES 8
- ILICONSYSTEMS PROPRIETARY 10
- PHYSICAL SPECIFICATIONS 11
- PRODUCT SPECIFICATIONS 12
- RELIABILITY 13
- ENVIRONMENTAL SPECIFICATIONS 14
- ELECTRICAL SPECIFICATION 15
- SILICONSYSTEMS PROPRIETARY 16
- SIGNAL DESCRIPTIONS 17
- ABSOLUTE MAXIMUM RATINGS 25
- CAPACITANCE 26
- DC CHARACTERISTICS 26
- AC CHARACTERISTICS 27
- AGE 19 FEBRUARY 2, 2009 29
- AGE 20 FEBRUARY 2, 2009 30
- AGE 21 FEBRUARY 2, 2009 31
- AGE 22 FEBRUARY 2, 2009 32
- ATTRIBUTE MEMORY MAP 35
- CARD INFORMATION STRUCTURE 36
- AGE 37 FEBRUARY 2, 2009 47
- AGE 38 FEBRUARY 2, 2009 48
- PIN PLACEMENT REGISTER (204H) 49
- AGE 40 FEBRUARY 2, 2009 50
- COMMON MEMORY READ OPERATIONS 51
- I/O SPACE READ OPERATIONS 52
- I/O SPACE WRITE OPERATIONS 52
- ATA REGISTERS 57
- FEATURE REGISTER 58
- SECTOR COUNT REGISTER 59
- SECTOR NUMBER REGISTER 60
- CYLINDER LOW REGISTER 61
- CYLINDER HIGH REGISTER 62
- DRIVE/HEAD REGISTER 63
- STATUS REGISTER 64
- COMMAND REGISTER 65
- ALTERNATE STATUS REGISTER 66
- DEVICE CONTROL REGISTER 67
- DEVICE ADDRESS REGISTER 68
- ATA COMMAND SET 69
- AGE 61 FEBRUARY 2, 2009 71
- AGE 62 FEBRUARY 2, 2009 72
- AGE 63 FEBRUARY 2, 2009 73
- AGE 64 FEBRUARY 2, 2009 74
- AGE 68 FEBRUARY 2, 2009 78
- AGE 69 FEBRUARY 2, 2009 79
- AGE 70 FEBRUARY 2, 2009 80
- AGE 71 FEBRUARY 2, 2009 81
- AGE 72 FEBRUARY 2, 2009 82
- AGE 73 FEBRUARY 2, 2009 83
- AGE 74 FEBRUARY 2, 2009 84
- AGE 75 FEBRUARY 2, 2009 85
- AGE 76 FEBRUARY 2, 2009 86
- AGE 77 FEBRUARY 2, 2009 87
- AGE 78 FEBRUARY 2, 2009 88
- AGE 79 FEBRUARY 2, 2009 89
- AGE 80 FEBRUARY 2, 2009 90
- AGE 81 FEBRUARY 2, 2009 91
- AGE 82 FEBRUARY 2, 2009 92
- AGE 83 FEBRUARY 2, 2009 93
- AGE 84 FEBRUARY 2, 2009 94
- AGE 85 FEBRUARY 2, 2009 95
- AGE 86 FEBRUARY 2, 2009 96
- AGE 87 FEBRUARY 2, 2009 97
- AGE 88 FEBRUARY 2, 2009 98
- AGE 89 FEBRUARY 2, 2009 99
- AGE 90 FEBRUARY 2, 2009 100
- AGE 91 FEBRUARY 2, 2009 101
- AGE 92 FEBRUARY 2, 2009 102
- AGE 93 FEBRUARY 2, 2009 103
- AGE 94 FEBRUARY 2, 2009 104
- AGE 95 FEBRUARY 2, 2009 105
- PART NUMBERING 106
- SALES AND SUPPORT 106
- PART NUMBERS 107
- SAMPLE LABEL 107
- RELATED DOCUMENTATION 108
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