Sony STR-DA90ESG Service Manual page 21

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Pin No. Pin Name I/O
46 SDO1 O
47 SDO0 O
48 SVCC —
49 SCKT O
50 WST O
51 SCKR I
52 QGND —
53 QVCC —
54 —
SGND
55 WSR I
56 SDI1 I
57 SDI0 I
58 DSO O
59 DSI I
60 DSCK I
61 DR I
62 MD7 I/O
63 MD6 I/O
64 MD5 I/O
65 MD4 I/O
66 DGND —
67 MD3 I/O
68 MD2 I/O
69 MD1 I/O
70 DVCC —
71 MD0 I/O
72 DGND —
73 GPIO3 I/O
74 GPIO2 I/O
75 GPIO1 I/O
76 GPIO0 I/O
77 MRD O
78 MWR O
79 CS1 O
80 MA16 O
Audio serial data output terminal (for center side speaker)
Audio serial data output terminal (for front side speaker)
Power supply terminal (+5V) (for serial port)
Bit clock signal (2.8224 MHz) output terminal
L/R sampling clock signal (44.1 kHz) output terminal
Audio serial data reading clock signal input from the digital signal processor (IC3410)
Ground terminal (for internal logic)
Power supply terminal (+5V) (for internal logic)
Ground terminal (for serial port)
Word transmission input from the digital signal processor (IC3410)
Audio serial data input from the digital signal processor (IC3410)
Audio serial data input from the digital signal processor (IC3410)
Debug serial data output terminal Not used (open)
Debug serial data input terminal Not used (open)
Debug serial data reading clock signal input terminal Not used (open)
Debug request signal input terminal Not used (fixed at "H")
Two-way data bus with the S-RAM (IC3411)
Ground terminal (for data bus buffer)
Two-way data bus with the S-RAM (IC3411)
Power supply terminal (+5V) (for data bus buffer)
Two-way data bus with the S-RAM (IC3411)
Ground terminal (for data bus buffer)
General digital signal processor in/out terminal Not used (open)
General digital signal processor in/out with the master controller (IC3413)
Write strobe signal output to the S-RAM (IC3411)
Read strobe signal output to the S-RAM (IC3411)
Chip select signal output to the external RAM device Not used (open)
Address signal output to the S-RAM (IC3411)
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Function