Fujitsu MHV2160BT User Manual download pdf (Page 15)

Contents

C141-E239 xi

4.6 Read/write Circuit .............................................................................................4-9

4.6.1 Read/write preamplifier (PreAMP).......................................................4-9

4.6.2 Write circuit ..........................................................................................4-9

4.6.3 Read circuit .........................................................................................4-10

4.6.4 Digital PLL circuit ..............................................................................4-11

4.7 Servo Control ..................................................................................................4-12

4.7.1 Servo control circuit............................................................................4-12

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

5.1.2.1 Out of band signaling .................................................................5-4

5.1.2.2 Primitives descriptions...............................................................5-5

5.1.3 Electrical specifications ........................................................................5-7

5.1.4 Connector pinouts ...............................................................................5-10

5.1.5 P11 function ........................................................................................5-11

5.1.5.1 Staggered Spin-up ....................................................................5-11

5.1.5.2 Driving Ready LED..................................................................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

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Fujitsu MHV2160BT User Manual Page 15