Sony XES-Z50 Service Manual page 66

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CHANGER BOARD IC303 CXP83413-035Q (CD TEXT DECODER)
Pin No. Pin Name
1 NC
2 NC
3 NC
4 REQ
5 CCLK
6 CSI
7 CSO
8 SCLK
9 SSI
10 NC
11 ADD0
12 ADD1
13 ADD2
14 ADD3
15 ADD4
16 ADD5
17 ADD6
18 ADD7
19 RAMSEL
20 DATA0
TE
L 13942296513
21 DATA1
22 DATA2
23 DATA3
24 DATA4
25 DATA5
26 DATA6
27 DATA7
28 RST
29 EXTAL
30 XTAL
31 VSS
32 to 55 NC
56 BUSY
57 to 59 NC
60 ADD16
61 NC
62 CE
63 WE
64 ADD8
www
65 ADD9
66 ADD10
67 ADD11
.
68 ADD12
69 ADD13
http://www.xiaoyu163.com
I/O
O Not used (open)
O Not used (open)
I Not used (fixed at "L")
O
Request signal output to the system controller (IC301)
I
Serial data transfer clock signal input from the system controller (IC301)
I
Serial data input from the system controller (IC301)
O Serial data output to the system controller (IC301)
O
Clock signal output for subcode data reading to the digital signal processor (IC501)
I
Subcode data input from the digital signal processor (IC501)
O Not used (open)
O
O
O
O
Address signal output to the S-RAM (IC304)
O
O
O
O
I Not used (open)
I/O
I/O
I/O
I/O
Two-way data bus with the S-RAM (IC304)
I/O
I/O
I/O
I/O
System reset signal input from the system controller (IC301), reset signal generator (IC903),
I
and bus interface (IC951) (for SONY bus) "L": reset For several hundreds msec. after the
power supply rises, "L" is input, then it changes to "H"
I
System clock input terminal (10 MHz)
O
System clock output terminal (10 MHz)
— Ground terminal
O
Not used (open)
O
Busy signal output to the system controller (IC301)
O
Not used (open)
O Address signal output to the S-RAM (IC304)
O
Not used (open)
O
Chip enable signal output to the S-RAM (IC304)
O
Write enable signal output to the S-RAM (IC304)
O
O
O
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y
Address signal output to the S-RAM (IC304)
O
i
O
O
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Function
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