FUJITSU DISK DRIVES MHM215OAT - Manual (Page 59)

Theory of Device Operation
4-6 C141-E104-02EN
Figure 4.3 Circuit Configuration
Read Data
MPU
(Micro
Processor
Unit)
HDIC
HDC
(Hard Disk
Controller)
FROM
Program
Memory
Voice
Coil
Motor Spindle
Motor
SVC
Motor
Controller
and
Driver
Write Data
Read Data
(Read/Write
Preamplifier)
Servo
Pulse
and
Position
Signal
Write Data
RDC
Read
Channel
SVC
Control
Signal
SDRAM
Data
Buffer
RAM
HDIC
Control
Signal Data
Buffer
Bus
16 bit
16 bit
Local Bus
RDC
Control
Signal
Read
and
Write
Data
Printed
Circuit
Board
ATA
Interface
Host
Disk
Enclosure Head
Read
Head
Write
Head
Read Data