Contents
C141-E224
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
5.2.3.1
FIS types .................................................................................. 5-17
5.2.3.2
Register - Host to Device......................................................... 5-17
5.2.3.3
Register - Device to Host ......................................................... 5-18
5.2.3.4
DMA Active - Device to Host ................................................. 5-18
5.2.3.5
DMA Setup - Device to Host or Host to Device
(Bidirectional) .......................................................................... 5-19
Summary of Contents for MHV2040BH
Page 1: ...C141 E224 02EN MHV2120BH MHV2100BH MHV2080BH MHV2060BH MHV2040BH DISK DRIVES PRODUCT MANUAL ...
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Page 86: ...Interface 5 12 C141 E224 Figure 5 2 Example of the circuit for driving Ready LED ...
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