Fujitsu MHW2160BJ Product/Maintenance Manual page 15

4.6.3 Read circuit ........................................................................................... 4-11
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
5.1.4 Connector pinouts ................................................................................... 5-7
5.1.5 P11 function ............................................................................................ 5-8
5.1.6 Hot Plug ................................................................................................ 5-10
5.2 Logical Interface .............................................................................................. 5-11
5.2.1 Communication layers........................................................................... 5-12
5.2.2 Outline of the Shadow Block Register .................................................. 5-13
5.2.3 Outline of the frame information structure (FIS) .................................. 5-14
5.2.4 Shadow block registers.......................................................................... 5-22
5.3 Host Commands ............................................................................................... 5-27
5.3.1 Command code and parameters ............................................................ 5-27
5.3.2 Command descriptions.......................................................................... 5-30
C141-E259
Electrical specifications ........................................................................ 5-6
(1) RECALIBRATE (X '10' to X '1F')................................................ 5-31
(2) READ SECTOR(S) (X '20' or X '21') ........................................... 5-32
(3) WRITE SECTOR(S) (X '30' or X '31') ......................................... 5-34
(4) WRITE VERIFY (X '3C') ............................................................. 5-36
(5) READ VERIFY SECTOR(S) (X '40' or X '41')............................ 5-38
(6) SEEK (X '70' to X '7F') ................................................................. 5-40
(7) EXECUTE DEVICE DIAGNOSTIC (X '90')............................... 5-41
(8) INITIALIZE DEVICE PARAMETERS (X '91') .......................... 5-42
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