Read Sony STR-DA80ES / TA-V88ES / TA-VA80ES Service Manual online
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Pin No.
Pin Name
I/O
Function
46
SDO1
O
Audio serial data output to the digital signal processor (IC3412)
47
SDO0
O
Audio serial data output to the digital signal processor (IC3412)
48
SVCC
—
Power supply terminal (+5V) (for serial port)
49
SCKT
O
Audio serial data transfer clock signal output to the digital signal processor (IC3412)
50
WST
O
Word transmission output to the digital signal processor (IC3412)
51
SCKR
I
Bit clock signal (2.8224 MHz) input terminal
52
QGND
—
Ground terminal (for internal logic)
53
QVCC
—
Power supply terminal (+5V) (for internal logic)
54
SGND
—
Ground terminal (for serial port)
55
WSR
I
L/R sampling clock signal (44.1 kHz) input terminal
56
SDI1
I
Audio serial data input terminal
57
SDI0
I
Audio serial data input terminal
58
DSO
O
Debug serial data output terminal Not used (open)
59
DSI
I
Debug serial data input terminal Not used (open)
60
DSCK
I
Debug serial data reading clock signal input terminal Not used (open)
61
DR
I
Debug request signal input terminal Not used (fixed at “H”)
62
MD7
I/O
63
MD6
I/O
64
MD5
I/O
65
MD4
I/O
66
DGND
—
Ground terminal (for data bus buffer)
67
MD3
I/O
68
MD2
I/O
Two-way data bus with the external RAM device Not used (open)
69
MD1
I/O
70
DVCC
—
Power supply terminal (+5V) (for data bus buffer)
71
MD0
I/O
Two-way data bus with the external RAM device Not used (open)
72
DGND
—
Ground terminal (for data bus buffer)
73
GPIO3
I/O
74
GPIO2
I/O
75
GPIO1
I/O
76
GPIO0
I/O
77
MRD
O
Write strobe signal output to the external RAM device Not used (open)
78
MWR
O
Read strobe signal output to the external RAM device Not used (open)
79
MRAS
O
Row address strobe signal output to the external RAM device Not used (open)
80
MCAS
O
Column address strobe signal output to the external RAM device Not used (open)
Two-way data bus with the external RAM device Not used (open)
General digital signal processor in/out terminal Not used (open)
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