DV-5050M/5900M/DVF-J6050/J6050-G
11
CIRCUIT DESCRIPTION
Port No.
Port Name
I/O
Function
Active
H
L
77
LOCK SW
I
Input port of stocker lock switch for mechanism.
LOCK
78
CLOSE SW
I
Input port of door close switch for mechanism.
CLOSE
79
PL SW
I
Mechanism load clump position switch input.
PLAY
POSITION
80
HP SW
I
Mechanism home position switch input.
HOME
POSITION
81~88
NC
-
No used.
89
EJECT LED
O
Control port of eject LED.
LED ON
90
+B
O
On/off control port of power supply for photo sensor (PH 1~3).
ON
91
PWM
O
Disc sensor on/off control.
ON
92
S LED
O
Control port of LED in the stocker.
LED ON
93
POWER OUT
O
Output port of power on signal to main microcomputer.
94
POWER IN
I
Input port of power on signal from main microcomputer.
95
SUB-STB
I
Request signal input from main microcomputer
REQUEST
96
MAIN-STB
O
Request signal output to main microcomputer
REQUEST
97
SI0
I
Serial data input from main microcomputer.
98
SO0
O
Serial data output to main microcomputer.
99
SCX0
I
Serial clock input from main microcomputer.
100
RXD0
-
No used.
Port No.
Port Name
I/O
Function
1,9,32,46,53,73,104
116,142,156,160,166
VDD
-
Digital supply voltage (+3.3V).
172,179,184,191,197
205
2~4,6~8,10,201
MA0~MA11
O
SDRAM address 0~11
203,204,206,207
5,14,27,42,52,60,70
83,92,105,120,147
VSS
-
Digital ground.
157,163,169,176,182
-
Connected to digital ground.
-
Digital supply voltage (+2.5V) for internal logic.
I
System reset input. L : Reset
-
Connected to digital ground.
-
Main PLL supply voltage (+3.3v).
0
Unused.
-
Connected to digital ground.
I
System clock input (27MHz).
I
Test input port for main PLL. L : Fixed
21
CKIO
I
Decode clock change-over.
22
PLLVDD
-
Supply voltage (+2.5V) of internal logic for main PLL..
23,24
HMD1,HMD0
-
Connected to digital supply voltage (+3.3V).
25
XHINT
O
Interruption to DVD microcomputer. L : Active
26
XDK
O
Acknowledgment to DVD microcomputer. L : Active
28
XWR
I
Write enable from DVD microcomputer.
29
XRD
I
Read enable from DVD microcomputer.
30
XCS
I
Chip select from DVD microcomputer.
31
HCLK
I
Clock input from DVD microcomputer.
33~36,38~41,43~45
HA1~HA11
I
Address input from DVD microcomputer.
6. Port Function of ICs
6-1 AV decoder : MN677521HB (X35, IC300)
• Port Function
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