Yamaha AV-S70 Service Manual page 21

IC4 : YSS908-F
AC3Dav
No. Name I/O
53 CRC O AC-3 CRC error detect terminal
54 MUTE O Auto mute detect terminal
55 KARAOKE O AC-3 KARAOKE data detect terminal
56 SURENC O AC-3 2/0 mode Dolby surround encode input detect terminal
57 /SDBCK0 O SDBCK0 invert clock output terminal
58 RAMA6 O External SRAM address terminal 6
59 RAMA5 O External SRAM address terminal 5
60 VSS Ground terminal
61 RAMA4 O External SRAM address terminal 4
62 /IC I Initial clear terminal
63 TEST Test terminal (unconnected)
64 RAMA3 O External SRAM address terminal 3
65 /CSB I Sub DSP chip select input terminal
66 /CS I Microprocessor interface chip select input terminal
67 SO O Microprocessor interface data output terminal
68 SI I Microprocessor interface and Sub DSP data input terminal
69 SCK I Microprocessor interface and Sub DSP clock input terminal
70 RAMA2 O
71 PVDD +5V power terminal
72 RAMD0 I/O External SRAM data terminal (STREAM 0 output when external SRAM is not used)
73 RAMD1 I/O External SRAM data terminal (STREAM 1 output when external SRAM is not used)
74 RAMD2 I/O External SRAM data terminal (STREAM 2 output when external SRAM is not used)
75 RAMD3 I/O External SRAM data terminal (STREAM 3 output when external SRAM is not used)
76 RAMD4 I/O External SRAM data terminal (STREAM 4 output when external SRAM is not used)
77 RAMD5 I/O External SRAM data terminal (STREAM 5 output when external SRAM is not used)
78 RAMD6 I/O External SRAM data terminal (STREAM 6 output when external SRAM is not used)
79 RAMD7 I/O External SRAM data terminal (STREAM 7 output when external SRAM is not used)
80 PVSS Ground terminal
81 VDD2 +3V power terminal
82 SDWCK0 I Word clock input terminal for SDIA, SDOA, SDIB and SDOB signals
83 SDBCK0 I Bit clock input terminal for SDIA, SDOA, SDIB and SDOB signals
84 SDIA0 I AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
85 SDIA1 I AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
86 RAMA1 O External SRAM address terminal 1
87 RAMA0 O External SRAM address terminal 0
88 RAMWEN O External SRAM write enable terminal
89 RAMOEN O External SRAM output enable terminal
90 VSS Ground terminal
91 VDD +3V power terminal
92 IPORT7 I General purpose input terminal (GND)
93 IPORT6 I General purpose input terminal (GND)
94 IPORT5 I General purpose input terminal (GND)
95 IPORT4 I General purpose input terminal (GND)
96 IPORT3 I General purpose input terminal (GND)
97 IPORT2 I General purpose input terminal (GND)
98 IPORT1 I General purpose input terminal (GND)
99 IPORT0 I General purpose input terminal (GND)
100 VSS Ground terminal
External SRAM address terminal 2
Function
AV-S70/NX-SW70
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