Quantum FIREBALL PLUS AS 20.5 Handbuch Seite 124
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ATA Bus Interface and ATA Commands
6-62 Quantum Fireball Plus AS 10.2/20.5/30.0/40.0/60.0 GB AT
6.7.23
6.7.236.7.23
6.7.23 WRITE BUFFER
WRITE BUFFERWRITE BUFFER
WRITE BUFFER
COMMAND CODE – E8h
DESCRIPTION – The WRITE BUFFER command enables the host to write to the
drive's sector buffer. When the host issues this command, the drive sets BSY, sets
up the sector buffer for a write operation, sets DRQ, clears BSY, and generates an
interrupt. The host then writes up to 512 bytes of data to the buffer.
INPUTS
OUTPUTS
Register
RegisterRegister
Register 7
77
76
66
65
55
54
44
43
33
32
22
21
11
10
00
0
Features na
Sector Count na
Sector Number na
Cylinder Low na
Cylinder High na
Device/ Head obs na obs DEV na
Command E8h
Register
RegisterRegister
Register 7
77
76
66
65
55
54
44
43
33
32
22
21
11
10
00
0
Error nananananaABRTnana
Sector Count na
Sector Number na
Cylinder Low na
Cylinder High na
Device/ Head obsnaobsDEVnananana
Status BSY DRDY DF na DRQ na na ERR
- December 12, 2000 1
- 81-121729-04 1
- UL/CSA/TUV/CE 2
- SERVICE CENTERS 2
- Table of Contents 3
- Chapter 4 4
- SPECIFICATIONS 4
- Chapter 5 4
- Chapter 6 5
- List of Figures 6
- List of Tables 7
- List of TablesList of Tables 7
- Table of Contents 8
- About This Manual 10
- REFERENCES 11
- 1.4 REFERENCES 11
- REFERENCESREFERENCES 11
- General Description 14
- 3.1 SPACE REQUIREMENTS 17
- SPACE REQUIREMENTS 17
- 3.2 UNPACKING INSTRUCTIONS 18
- UNPACKING INSTRUCTIONS 18
- Installation 19
- 3.3 HARDWARE OPTIONS 20
- HARDWARE OPTIONS 20
- 3.3.13.3.1 21
- Cable Select (CS) Jumper 21
- (DS jumper installed or CS 22
- 3.3.53.3.5 23
- 3.3.5 Alternate Capacity (AC) 23
- Alternate Capacity (AC) 23
- J1 Power Connector, Section A 28
- 3.103.10 33
- SYSTEM STARTUP AND OPERATION 33
- 4.1 SPECIFICATION SUMMARY 35
- SPECIFICATION SUMMARY 35
- Specifications 36
- 4.4 TIMING SPECIFICATIONS 38
- TIMING SPECIFICATIONS 38
- 4.5.34.5.3 40
- 4.5.3 Power Requirements 40
- Power Requirements 40
- 4.6 ACOUSTICS 41
- ACOUSTICSACOUSTICS 41
- ACOUSTICS 41
- 4.9 SHOCK AND VIBRATION 43
- SHOCK AND VIBRATION 43
- Basic Principles of Operation 47
- RG, WG) and Command 52
- 5.2.25.2.2 53
- 5.2.2 Read/Write ASIC 53
- Read/Write ASIC 53
- 5.3.25.3.2 57
- Head and Cylinder Skewing 57
- 5.3.35.3.3 58
- 5.3.45.3.4 60
- 5.3.4 Defect Management 60
- Defect Management 60
- Signal Line Definitions 70
- 6.4.26.4.2 71
- 6.4.2 Host Interface Timing 71
- Host Interface Timing 71
- PIO Host Interface Timing 72
- PIO Interface Timing 72
- Initiating a Data In Burst 77
- Sustained Data In Burst 77
- Host Pausing a Data In Burst 78
- Initiating a Data Out Burst 79
- Sustained Data Out Burst 80
- Figure 6-11 81
- Figure 6-11 Figure 6-11 81
- Host Interface RESET Timing 82
- 6.5 REGISTER ADDRESS DECODING 83
- REGISTER ADDRESS DECODING 83
- Device Control Register Bits 85
- 6.6.26.6.2 86
- 6.6.2 Command Block Registers 86
- Command Block Registers 86
- Error Register Bits 87
- Drive Head Register Bits 88
- Status Register Bits 89
- 6.7.26.7.2 92
- 6.7.2 Read Sectors 92
- Read SectorsRead Sectors 92
- Read Sectors 92
- 6.7.36.7.3 93
- 6.7.3 Write Sectors 93
- Write SectorsWrite Sectors 93
- Write Sectors 93
- 6.7.46.7.4 94
- 6.7.4 Read Verify Sectors 94
- Read Verify Sectors 94
- 6.7.56.7.5 95
- 6.7.5 Seek 95
- SeekSeek 95
- 6.7.66.7.6 96
- Execute Drive Diagnostics 96
- 6.7.76.7.7 98
- INITIALIZE DRIVE PARAMETERS 98
- 6.7.86.7.8 99
- 6.7.8 Download Microcode 99
- Download Microcode 99
- 6.7.96.7.9 100
- 6.7.9 SMART 100
- SMARTSMART 100
- Device SMART Data Structure 106
- 6.7.116.7.11 111
- 6.7.11 Write Multiple Sectors 111
- Write Multiple Sectors 111
- 6.7.126.7.12 112
- 6.7.12 Set Multiple Mode 112
- Set Multiple Mode 112
- 6.7.136.7.13 113
- 6.7.13 Read DMA 113
- Read DMARead DMA 113
- Read DMA 113
- 6.7.146.7.14 114
- 6.7.14 Write DMA 114
- Write DMAWrite DMA 114
- Write DMA 114
- 6.7.156.7.15 116
- 6.7.15 STANDBY IMMEDIATE 116
- STANDBY IMMEDIATE 116
- 6.7.166.7.16 117
- 6.7.16 IDLE IMMEDIATE 117
- IDLE IMMEDIATEIDLE IMMEDIATE 117
- IDLE IMMEDIATE 117
- 6.7.176.7.17 118
- 6.7.17 STANDBY 118
- STANDBYSTANDBY 118
- 6.7.186.7.18 119
- 6.7.18 IDLE 119
- IDLEIDLE 119
- 6.7.196.7.19 120
- 6.7.19 READ BUFFER 120
- READ BUFFERREAD BUFFER 120
- READ BUFFER 120
- 6.7.206.7.20 121
- 6.7.20 CHECK POWER MODE 121
- CHECK POWER MODE 121
- 6.7.216.7.21 122
- 6.7.21 SLEEP 122
- SLEEPSLEEP 122
- 6.7.226.7.22 123
- 6.7.22 FLUSH CACHE 123
- FLUSH CACHEFLUSH CACHE 123
- FLUSH CACHE 123
- 6.7.236.7.23 124
- 6.7.23 WRITE BUFFER 124
- WRITE BUFFERWRITE BUFFER 124
- WRITE BUFFER 124
- 6.7.246.7.24 125
- 6.7.24 IDENTIFY DRIVE 125
- IDENTIFY DRIVE 125
- Identify Drive Parameters 127
- Transfer/Mode Values 133
- 6.7.276.7.27 134
- 6.7.27 Read Defect List 134
- Read Defect List 134
- DEFECT LIST DATA FORMAT 136
- DEFECT ENTRY DATA FORMAT 136
- 6.7.286.7.28 137
- 6.7.28 Configuration 137
- ConfigurationConfiguration 137
- Configuration 137
- Configuration Command Format 140
- 6.7.296.7.29 141
- Host Protected Mode Feature 141
- 6.8 ERROR REPORTING 148
- ERROR REPORTING 148
- GLOSSARY 151
- GLOSSARYGLOSSARY 151
- Glossary 152
- INDEXINDEX 159
- I-3 161
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