10.3.3

Signal Treatment..................................................................................................................................................

 

31

10.3.4

Series resistance ..................................................................................................................................................

 

32

10.3.5

Signal Description ...............................................................................................................................................

 

32

10.4 HOST INTERFACE TIMING .............................................................................................................................................

34

10.4.1 Program I/O Write Timing ..................................................................................................................................

34

10.4.2 Program I/O Read Timing ...................................................................................................................................

35

10.4.3 Multiword DMA Write Timing.............................................................................................................................

36

10.4.4 Multiword DMA Read Timing .............................................................................................................................

37

10.4.5

Ultra DMA Timing...............................................................................................................................................

 

38

10.4.6

Reset Timing ........................................................................................................................................................

 

 

 

47

10.5

GROUNDING .................................................................................................................................................................

 

 

 

47

10.6

ADDRESS DECODING ....................................................................................................................................................

 

48

10.7

REGISTER DESCRIPTION................................................................................................................................................

 

49

10.7.1

Data Register

.......................................................................................................................................................

 

 

49

10.7.2

Error Register ......................................................................................................................................................

 

 

50

10.7.3 Features Register (Write Precompensation Register) .........................................................................................

51

10.7.4

Sector Count Register ..........................................................................................................................................

51

10.7.5

Sector Number Register .......................................................................................................................................

52

10.7.6

Cylinder Low Registers........................................................................................................................................

52

10.7.7

Cylinder High Registers.......................................................................................................................................

52

10.7.8

Device/Head Register ..........................................................................................................................................

53

10.7.9

Status Register

.....................................................................................................................................................

 

54

10.7.10

Command Register...........................................................................................................................................

55

10.7.11

Alternate Status Register..................................................................................................................................

58

10.7.12

Device Control Register...................................................................................................................................

58

10.7.13

Device Address register ...................................................................................................................................

58

10.8

COMMAND DESCRIPTIONS ............................................................................................................................................

59

10.8.1

Nop (00h) ..........................................................................................................................................................

 

 

 

60

10.8.2

Recalibrate

(1xh)

..............................................................................................................................................

60

10.8.3

Flush Cache

 

(E7h) ............................................................................................................................................

60

10.8.4

Flush Cache EXT

(EAh)....................................................................................................................................

60

10.8.5

Read Sector

(20h/21h) ......................................................................................................................................

61

10.8.6

Read Sector EXT

(24h) .....................................................................................................................................

61

10.8.7

Write Sector

 

(30h/31h)......................................................................................................................................

62

10.8.8

Write Sector EXT

(34h).....................................................................................................................................

62

10.8.9

Read Verify

(40h)..............................................................................................................................................

63

10.8.10

Read Verify EXT

(42h)..................................................................................................................................

63

10.8.11

Write Verify

(3Ch).........................................................................................................................................

63

10.8.12

Format Track

(50h).....................................................................................................................................

64

10.8.13

Seek (7xh)......................................................................................................................................................

 

 

66

10.8.14

Toshiba Specific...............................................................................................................................................

 

66

10.8.15

Execute Diagnostics

(90h) ............................................................................................................................

66

10.8.16

Initialize Device Parameters (91h) ...............................................................................................................

67

10.8.17

Download Microcode (92h)..........................................................................................................................

68

10.8.18

Read Multiple (C4h) .....................................................................................................................................

69

10.8.19

Read Multiple EXT

(29h) ..............................................................................................................................

70

10.8.20

Write Multiple

(C5h).....................................................................................................................................

70

10.8.21

Write Multiple EXT

(39h) .............................................................................................................................

72

10.8.22

Set Multiple Mode

(C6h)...............................................................................................................................

72

10.8.23

Read DMA

 

(C8h/C9h)...................................................................................................................................

73

10.8.24

Read DMA EXT

(25h)...................................................................................................................................

73

10.8.25

Write DMA

 

(CAh/CBh) .................................................................................................................................

74

10.8.26

Write DMA EXT

(35h) ..................................................................................................................................

74

10.8.27

Power Control

(Exh).....................................................................................................................................

75

10.8.28

Read Buffer

(E4h) .........................................................................................................................................

77

10.8.29

Write Buffer

(E8h).........................................................................................................................................

77

10.8.30

Identify Device

(ECh)....................................................................................................................................

78

10.8.31

SET MAX (F9h) ...............................................................................................................................................

 

93

 

 

 

 

 

 

 

 

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