Circuit Operating Descriptions
Samsung Electronics
7-9
7-3-3 Waveform Description
When micom accesses each device sharing bus, it falls the chip select signal of corresponding chip to
(/dspcs : ZIC1-123, /FLASH DSP : ZIC1-126, /DSPCS : DIC1-2, /DVD1CS : ZIC1-208, CSB : SIC1-10)
0 (Low) before trial.
So to speak, the bus is used by time-division as shown in Fig. 7-14.
Two and more devices can't be accessed simultaneously.
CH1
CH2
CH3
CH4
Fig. 7-14 Servo Chip Access
• CH1 : /DSPCS (ZIC1-123, DSP CHIP SELECT)
• CH2 : /FLASHCS (ZIC1-126, FLASH CHIP SELECT)
• CH3 : /WR 9ZIC1-129, MICOM OUTPUT WRITE SIGNAL)
• CH4 : /RD (ZIC1-128, MICOM OUTPUT READ SIGNAL)
Summary of Contents for DVD-E234
Page 57: ...Samsung Electronics 10 1 10 Wiring Diagram ...
Page 59: ...Schematic Diagrams 11 2 Samsung Electronics 11 1 Power ...
Page 61: ...Schematic Diagrams 11 4 Samsung Electronics 11 3 Servo ...
Page 62: ...Schematic Diagrams Samsung Electronics 11 5 11 4 Front Micom VFD Display ...
Page 63: ...Schematic Diagrams 11 6 Samsung Electronics 11 5 Video ...
Page 64: ...Schematic Diagrams Samsung Electronics 11 7 11 6 Audio ...
