Aiwa AV-D77 Service Manual page 49

U: IC, YSS912, EZ: IC, YSS902
Pin No. Pin Name
1 VDD1
2 RAMCEN
3 RAMA16
4 RAMA15
5~7 SDIB0~2
8 XI
9 XO
10 VSS
11 AVDD
12~14 TEST
15 OVFB
16~18 TEST
19 CPO
20 AVSS
21 VDD2
22 SDOA2
23 SDOA1
24 SDOA0
25~29 RAMA14~10
30 VSS
31 VDD1
32 OPORT0
33~35 OPORT1~3
36 OPORT4
37 OPORT5
38 OPORT6 A
39 OPORT7 B
40 VSS
41 VDD2
42~44 RAMA9~7
45~47 SDOB2~0
48 SDBCK1
49 SDWCK1
50 VSS
51 VDD2
52 NONPCM
53 CRC
54 MUTE
55 KARAOKE
56 SURENC
57 /SDBCK0
58,59 RAMA6,5
I/O
+5V power supply for (I/Os).
-
O External SRAM Interface / CE. (Not used)
O
External SRAM Interface address 16. (Not used)
O External SRAM Interfce address 15. (Not used)
I PCM input 0~2 to Sub DSP. (Not used)
I Crystal oscillator connection or input external clock (6.125MHz - 50.0MHz).
O Crystal oscillator connection.
- Ground.
- +3.3V power supply (for PLL circuit).
- Test terminal. (Not used)
O Detection of overflow at Sub DSP. (Not used)
- Test terminal. (Not used)
O Output terminal for PLL, to be connected to ground through the external analog filter circuit.
- Ground (for PLL circuit).
- +3.3V power supply (for core logic).
O PCM output from Main DSP (C, LFE). (Not used)
O PCM output from Main DSP (LS, RS). (Not used)
O PCM output from Main DSP (L, R). (Not used)
O External SRAM Interface address 14 ~ 10. (Not used)
- Ground.
- +5V power supply (for I/Os).
O Output port for general purpose. (Not used)
O Output port for general purpose.
O Output port for general purpose.
O Output port for general purpose. (Not used)
O Output port for general purpose.
O Output port for general purpose.
- Ground.
- +3.3V power supply (for core logic).
O External SRAM interface address 9~7. (Not used)
O PCM output from Sub DSP.
I Bit clock input for SDOA, SDIB, SDOB. (Not used)
I Word clock input for SDOA,SDIB,SDOB. (Not used)
- Ground.
- +3.3V power supply (for core logic).
O Detection of non-PCM data. (Not used)
O Detection of CRC error. (Not used)
O Detection of auto mute. (Not used)
O Detection of AC-3 karaoke data. (Not used)
O Detection of AC-3 2/0 mode Dolby surround encoded input. (Not used)
O Inverted SDBCK0 clock output . (Not used)
O External SRAM Interface address 6, 5. (Not used)
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Description