JVC MX-J270V Service Manual page 35

CL480-F1 (IC101) : MPEG-1 Audio / Video decoder
Symbol
Pin No.
I/O
1 HA2
I Host address.
2 DS
I Data strobe terminal.
3 W/R I I/O read terminal.
4 IRQ O Interact terminal.
5 DTACK
O Acknowledge data output.
6 HD0
I/O Host data terminal.
7 IO VDD - Power supply for input/output.
8,9 HD1,2 I/O Host data terminal.
10 CKT VSS
- Connected to GND.
11 15 HD3 7
I/O Date data terminal.
16 IOVSS - Ground terminal for Input/Output.
17 TEST I Test terminal.
18 XTLVSS
I Oscillator ground terminal.
19 XTLIN
I Oscillator input terminal.
20 XTLOUT O Oscillator output terminal.
21 XTLVDD - Power supply for oscillator.
22 CKTVDD
- Power supply.
23 28 MD0 5
I/O DRAM data / ROM data terminal.
29 IOVDD - Power supply for Input/Output.
30,31 MD6,7 I/O DRAM data/ROM data terminal.
32,33 MCE01
O Chip enable output for ROM bank.
34 37 MD8 11
I/O DRAM data/ROM data terminal.
38 IOVSS - Ground terminal for Input/Output.
39 42 MD12 15 I/O DRAM data/ROM address terminal.
43 5VVDD
- Power supply (+5V).
44 LCAS
O DRAM LCAS/ROM address terminal.
45 LCASIN I DRAM LCAS input.
46 CKTVSS - Connect to GND.
47 MWE
O DRAM write enable signal output.
48 UCAS
O DRAM UCAS/ROM address terminal.
49 IOVDD - Power supply for Input/Output.
50 UCASIN DRAM UCAS input terminal.
51,52 RAS0,1
O DRAM RAS0,1 terminal.
53 57 MA9 5
O DRAM data/ROM address terminal.
58 IOVSS - Ground terminal for Input/Output.
59 63 MA4 0 O DRAM data/ROM address terminal.
64 PIO0
O ROM address extension terminal.
65 IOVDD
- Power supply for Input/output.
66 72 VD0 6 O Video data terminal
(R6/CrCb6/YCrCb066)
73 IOVSS
- Ground terminal for Input/Output.
74 76 VD7 9
O Video data terminal
(R7/CrCb7/YCrCb7)(G0,1/Y0,1)
77 CKTVDD - Power supply.
Pin No.
Function
78 80
81
82 84
85
86 89
90
91 94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
Symbol
I/O
O
Video data terminal (G24/Y24)
VD10 12
-
Power supply for Input/Output.
IOVDD
O
Video data terminal (G57/Y57)
VD13 15
-
Connect to GND.
CKTVSS
O
Video data terminal(B0B3)
VD16 19
-
Ground terminal for Input/Output.
IOVSS
O
Video data terminal(B47)
VD20 23
I/O
Vertical comparator/Composite
VSYNC
comparator output.
I/O
Horizontal synchronizing signal.
HSYNC
I
Video output enable signal.
VOE
-
Power supply of VCO.
VCOVDD
I/O
Video clock terminal.
VCLK
-
Ground of VCO.
VCOVSS
I
Reset signal input.
RESET
-
Ground terminal for Input/Output.
IOVSS
I
Data error flag input.
C2PO
I
L/R word clock input.
CDLRCK
I
Bit serial data input.
CDDATA
I
Bit clock output.
CDBCK
O
L/R clock output.
DALRCK
O
Bit serial PCM audio signal output.
DADATA
O
Bit clock output.
DABCK
-
Power supply for Input/Output.
IOVDD
I
Bit clock input terminal.
XCK
-
Power supply.
CKTVDD
O
Interact 2 signal output.
PIO12
O
Non connect.
PIO11
I
Host enable signal input.
PIO10
I
Boot ROM enable signal input.
PIO9
O
Non connect.
PIO8
O
DAC emphasis signal output.
PIO7
I
CD-DA emphasis signal output.
PIO6
O
Non connect.
PIO5
O
FMV detect signal output.
PIO4
O
CD-DA video CD select signal
PIO3
output Low:Video CD.
-
Power supply (+5V).
5VVDD
O
Non connect.
PIO2
-
Ground for Input/Output.
IOVSS
O
Non connect.
PIO1
-
Host address input.
HA0
-
Host address input.
HA1
MX-J270V
Function
1-35