FUJITSU MHV2160BT User Manual
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