Fujitsu MHV2040AT 用户手册

Contents 

C141-E218 

xi 

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

 

 

 

5.1  Physical Interface ...............................................................................................5-2

 

5.1.1  Interface signals.......................................................................................5-2

 

5.1.2  Signal assignment on the connector ........................................................5-3

 

5.2  Logical Interface.................................................................................................5-6

 

5.2.1  I/O registers .............................................................................................5-7

 

5.2.2  Command block registers........................................................................5-8

 

5.2.3  Control block registers ..........................................................................5-13

 

5.3  Host Commands ...............................................................................................5-14

 

5.3.1  Command code and parameters ............................................................5-14

 

5.3.2  Command descriptions ..........................................................................5-18

 

(1)  RECALIBRATE (X’10’ to X’1F’) ................................................. 5-20

 

(2)  READ SECTOR(S) (X’20’ or X’21’) ............................................ 5-21

 

(3)  WRITE SECTOR(S) (X’30’ or X’31’)........................................... 5-23

 

(4)  WRITE VERIFY (X’3C’)............................................................... 5-25

 

(5)  READ VERIFY SECTOR(S) (X’40’ or X’41’) ............................. 5-26

 

(6)  SEEK (X’70’ to X’7F’) .................................................................. 5-27

 

(7)  EXECUTE DEVICE DIAGNOSTIC (X’90’) ................................ 5-28

 

(8)  INITIALIZE DEVICE PARAMETERS (X’91’) ........................... 5-30

 

(9)  DOWNLOAD MICROCODE (X’92’) ........................................... 5-31

 

(10)  STANDBY IMMEDIATE (X’94’ or X’E0’) ............................... 5-33

 

(11)  IDLE IMMEDIATE (X’95’ or X’E1’) / UNLOAD 

IMMEDIATE (X’E1’).................................................................. 5-34