Contents
4.6.4 Digital PLL circuit ................................................................................ 4-12
4.7 Servo Control ................................................................................................... 4-13
4.7.1 Servo control circuit .............................................................................. 4-13
4.7.2 Data-surface servo format ..................................................................... 4-15
4.7.3 Servo frame format................................................................................ 4-17
4.7.4 Actuator motor control .......................................................................... 4-18
4.7.5 Spindle motor control............................................................................ 4-19
CHAPTER 5
Interface..................................................................................... 5-1
5.1 Physical Interface .............................................................................................. 5-2
5.1.1
Interface signals .................................................................................... 5-2
5.1.2
Signal interface regulation .................................................................... 5-4
5.1.3
Electrical specifications ........................................................................ 5-7
5.1.4
Connector pinouts ............................................................................... 5-10
5.1.5
P11 function........................................................................................ 5-11
5.1.6
Hot Plug .............................................................................................. 5-13
5.2 Logical Interface ............................................................................................. 5-14
5.2.1
Communication layers ........................................................................ 5-15
5.2.2
Outline of the Shadow Block Register................................................ 5-16
5.2.3
Outline of the frame information structure (FIS)................................ 5-17
5.2.4
Shadow block registers ....................................................................... 5-24
5.3 Host Commands .............................................................................................. 5-29
5.3.1
Command code and parameters .......................................................... 5-29
5.3.2
Command descriptions........................................................................ 5-32
(1)
RECALIBRATE (X’10’ to X’1F’) ............................................... 5-33
(2)
READ SECTOR(S) (X’20’ or X’21’)......................................... 5-34
(3)
WRITE SECTOR(S) (X’30’ or X’31’) ........................................ 5-36
(4)
WRITE VERIFY (X’3C’) ............................................................ 5-38
(5)
READ VERIFY SECTOR(S) (X’40’ or X’41’) .......................... 5-40
(6)
SEEK (X’70’ to X’7F’)................................................................. 5-42
(7)
EXECUTE DEVICE DIAGNOSTIC (X’90’)............................... 5-43
(8)
INITIALIZE DEVICE PARAMETERS (X’91’).......................... 5-44
(9)
DOWNLOAD MICROCODE (X’92’) ......................................... 5-45
(10)
STANDBY IMMEDIATE (X’94’ or X’E0’)................................ 5-47
C141-E249
xi
Содержание MHW2040BS
Страница 1: ...C141 E249 01EN MHW2120BS MHW2100BS MHW2080BS MHW2060BS MHW2040BS DISK DRIVES PRODUCT MANUAL ...
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Страница 18: ...Contents 6 5 1 Cache operation 6 20 Glossary GL 1 Acronyms and Abbreviations AB 1 Index IN 1 xiv C141 E249 ...
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Страница 86: ...Interface Figure 5 2 Example of the circuit for driving Ready LED 5 12 C141 E249 ...
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