Table of Contents
Advertisement
4-1.
Microprocessor Interface
IC501 RF AMP
The MZ-E30 has a microprocessor interface outlined in Fig. 4-2.. As shown in the figure, the system controller (IC801) is
employed as the mainstay to control the system as a whole. Besides, the DSP/digital servo (IC601) and the EEP ROM (IC802)
are provided. Commands and data are, moreover, bilaterally given and taken to and from the remote commander. In addition,
data are unilaterally transmitted to the RF amplifier. Communications with the DSP/digital servo and RF amplifier, meanwhile,
are performed by way of a serial bus (SBUS). Given and taken between system controller and DSP/digital servo mainly as
described below, furthermore, are those serial data and serial commands which will be input and output to and from Pin #∞
(SBUS DATA) as timed with the serial clock output from Pin #¢ [SBUS CLK].
System Controller n DSP/digital servo (WRITE mode)
• Various function data in each digital servo (DSSP) and
• SERVO- and PLL-mode setting data, and electronic volume setting data
DSP/digital servo n System Controller (READ mode)
• Error data in each servo and
• SubQ/ADIP cluster and sector information
From the system controller to the RF amplifier, SBUS data are transferred similarly to the case of DSP/digital servo. And
the clock line is used to set a gain in the I-V converter amplifier and ADIP extractor circuits located inside the RF amplifier,
to adjust the balance of focus and tracking amplifiers, to amplify the RF, with pit or MO played back, and to select the servo
amplifier polarity.
IC601 DSP/DIGITAL SERVO
SSB I/F
SSB I/F
31
21
22
SBUS CLOCK
SBUS DATA
35
IC802 EEPROM
DO
NVDI
4
73
NVDO
DI
3
72
SK
NVCLK
74
2
NVCS
CS
1
75
Fig. 4-2. Outline of Microprocessor Interface
32
33
34
27
RMC DTCLK
62
IC801
SYSTEM CONTROLLER
— 11 —
REMOTE CONTROLLER
J301
UNIT
RM-MZE50
4
3
2
LCD CONTROLLER
1
Advertisement
Table of Contents
