Yamaha DSP-AX1/RX-V1 Service Manual page 48

DSP-AX1/RX-V1
IC5 : YSS908 (P.C.B. DSP)
AC3Dav
No. Name I/O
53 CRC
54 MUTE
55 KARAOKE
56 SURENC
57 /SDBCK0
58 RAMA6
59 RAMA5
60 VSS
61 RAMA4
62 /IC
63 TEST
64 RAMA3
65 /CSB
66 /CS
67 SO
68 SI
69 SCK
70 RAMA2
71 PVDD
72 RAMD0 I/O
73 RAMD1 I/O
74 RAMD2 I/O
75 RAMD3 I/O
76 RAMD4 I/O
77 RAMD5 I/O
78 RAMD6 I/O
79 RAMD7 I/O
80 PVSS
81 VDD2
82 SDWCK0
83 SDBCK0
84 SDIA0
85 SDIA1
86 RAMA1
87 RAMA0
88 RAMWEN
89 RAMOEN
90 VSS
91 VDD
92 IPORT7
93 IPORT6
94 IPORT5
95 IPORT4
96 IPORT3
97 IPORT2
98 IPORT1
99 IPORT0
100 VSS
45
O AC-3 CRC error detect terminal
O Auto mute detect terminal
O AC-3 KARAOKE data detect terminal
O AC-3 2/0 mode Dolby surround encode input detect terminal
O SDBCK0 invert clock output terminal
O External SRAM address terminal 6
O External SRAM address terminal 5
Ground terminal
O External SRAM address terminal 4
I Initial clear terminal
Test terminal (unconnected)
O External SRAM address terminal 3
I Sub DSP chip select input terminal
I Microprocessor interface chip select input terminal
O Microprocessor interface data output terminal
I Microprocessor interface and Sub DSP data input terminal
I Microprocessor interface and Sub DSP clock input terminal
O External SRAM address terminal 2
+5V power terminal
External SRAM data terminal (STREAM 0 output when external SRAM is not used)
External SRAM data terminal (STREAM 1 output when external SRAM is not used)
External SRAM data terminal (STREAM 2 output when external SRAM is not used)
External SRAM data terminal (STREAM 3 output when external SRAM is not used)
External SRAM data terminal (STREAM 4 output when external SRAM is not used)
External SRAM data terminal (STREAM 5 output when external SRAM is not used)
External SRAM data terminal (STREAM 6 output when external SRAM is not used)
External SRAM data terminal (STREAM 7 output when external SRAM is not used)
Ground terminal
+3V power terminal
I Word clock input terminal for SDIA, SDOA, SDIB and SDOB signals
I Bit clock input terminal for SDIA, SDOA, SDIB and SDOB signals
I AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
I AC-3/DTS bit stream (or PCM) data input terminal to Main DSP
O External SRAM address terminal 1
O External SRAM address terminal 0
O External SRAM write enable terminal
O External SRAM output enable terminal
Ground terminal
+3V power terminal
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
I General purpose input terminal (GND)
Ground terminal
Function