IC, YSS902
Pin No.Pin NameI/ODescription
1VDD1-+5V power supply for (I/Os).
2RAMCENOExternal SRAM Interface / CE. (Not used)
3 RAMA16OExternal SRAM Interface address 16. (Not used)
4RAMA15OExternal SRAM Interfce address 15. (Not used)
5~7SDIB0~2IPCM input 0~2 to Sub DSP. (Not used)
8XIICrystal oscillator connection or input external clock (6.125MHz - 50.0MHz).
9XOOCrystal oscillator connection.
10VSS-Ground.
11AVDD-+3.3V power supply (for PLL circuit).
12~14TEST-Test terminal. (Not used)
15OVFBODetection of overflow at Sub DSP. (Not used)
16~18TEST-Test terminal. (Not used)
19CPOOOutput terminal for PLL, to be connected to ground through the external analog filter circuit.
20AVSS-Ground (for PLL circuit).
21VDD2-+3.3V power supply (for core logic).
22SDOA2OPCM output from Main DSP (C, LFE). (Not used)
23SDOA1OPCM output from Main DSP (LS, RS). (Not used)
24SDOA0OPCM output from Main DSP (L, R). (Not used)
25~29RAMA14~10OExternal SRAM Interface address 14 ~ 10. (Not used)
30VSS-Ground.
31VDD1-+5V power supply (for I/Os).
32OPORT0OOutput port for general purpose. (Not used)
33~35OPORT1~3OOutput port for general purpose.
36OPORT4OOutput port for general purpose.
37OPORT5OOutput port for general purpose. (Not used)
38OPORT6 AOOutput port for general purpose.
39OPORT7 BOOutput port for general purpose.
40VSS-Ground.
41VDD2-+3.3V power supply (for core logic).
42~44RAMA9~7OExternal SRAM interface address 9~7. (Not used)
45~47SDOB2~0OPCM output from Sub DSP.
48SDBCK1IBit clock input for SDOA, SDIB, SDOB. (Not used)
49SDWCK1IWord clock input for SDOA,SDIB,SDOB. (Not used)
50VSS-Ground.
51VDD2-+3.3V power supply (for core logic).
52NONPCMODetection of non-PCM data. (Not used)
53CRCODetection of CRC error. (Not used)
54MUTEODetection of auto mute. (Not used)
55KARAOKEODetection of AC-3 karaoke data. (Not used)
56SURENCODetection of AC-3 2/0 mode Dolby surround encoded input. (Not used)
57/SDBCK0OInverted SDBCK0 clock output . (Not used)
58,59RAMA6,5OExternal SRAM Interface address 6, 5. (Not used)
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ACEC
