Fujitsu MCE3064SS Product Manual page 28

(1) SCSI controller circuit section
The SCSI controller circuit's reliability is improved by large-scale integrated circuit technology.
The high-speed microprocessor (MPU) handles SCSI interface control and drive control such as
drive read-and-write control and single-beam control.
(2) Drive circuit section
The drive circuit section consists of the following circuits:
•
Laser diode control circuit
•
Signal reproduction circuit
•
Servo/seek control circuit
•
Rotation control circuit
•
Drive miscellaneous control circuit
The DSP (digital signal processor) is used for the servo/seek control circuit to reduce the circuit
amount, therefore this circuit is a simple configuration.
The drive circuit section executes operations such as seek, erase, record, and playback while the
MPU controls the focus-tracking of the beam.
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