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

DSP-AX1/RX-V1
IC6 : YSS918 (P.C.B. DSP)
AC3D2av
No. Name I/O
1 VDD
2 RAMCEN
3 RAMA16
4 RAMA15
5 SDIB0 Itp
6 SDIB1 Itp
7 SDIB2 Itp
8 XI
9 XO
10 VSS
11 AVDD
12 SDIB3 Itp
13 TEST
14 TEST
15 OVFB
16 DTSDATA
17 AC3DATA
18 SDOB3
19 CPO
20 AVSS
21 VDD2
22 SDOA2
23 SDOA1
24 SDOA0
25 RAMA14
26 RAMA13
27 RAMA12
28 RAMA11
29 RAMA10
30 VSS
31 VDD1
32 OPORT0
33 OPORT1
34 OPORT2
35 OPORT3
36 OPORT4
37 OPORT5
38 OPORT6
39 OPORT7
40 VSS
41 VDD2
42 RAMA9
43 RAMA8
44 RAMA7
45 SDOB2
46 SDOB1
47 SDOB0
48 SDBCK1 Itp
49 SDWCK1 Itp
50 VSS
51 VDD2
52 NONPCM
47
+5V power supply (for terminal section)
O External SRAM chip enable terminal
O External SRAM address terminal 16
O External SRAM address terminal 15
PCM input terminal 0 to Sub DSP
PCM input terminal 1 to Sub DSP
PCM input terminal 2 to Sub DSP
Ic Crystal oscillator connecting terminal (12.288MHz )
O Crystal oscillator connecting terminal
Ground terminal (for terminal section)
+3.3V power terminal (for PLL circuit)
PCM input terminal 3 to Sub DSP
Test terminal (unconnected)
Test terminal (unconnected)
O Sub DSP overflow detect terminal
O DTS data detect terminal
O AC-3 data detect terminal
O PCM output terminal from Sub DSP
A PLL output terminal (connected to external analog filter circuit)
Ground terminal (for PLL circuit)
+3.3V power terminal (for internal circuit)
O PCM output terminal from Main DSP (C/LFE output at AC-3/DTS, C/S output at Pro Logic)
O PCM output terminal from Main DSP (LS/RS output at AC-3/DTS, Lt/Rt output at Pro Logic)
O PCM output terminal from Main DSP (L/R output at both AC-3/DTS and Pro Logic)
O External SRAM address terminal 14
O External SRAM address terminal 13
O External SRAM address terminal 12
O External SRAM address terminal 11
O External SRAM address terminal 10
Ground terminal (for internal circuit)
+5V power terminal (for terminal section)
O General purpose output terminal (ISL0 : DIGITAL INPUT SEL)
O General purpose output terminal (ISL1 : DIGITAL INPUT SEL)
O General purpose output terminal (ISL2 : DIGITAL INPUT SEL)
O General purpose output terminal (RFSL : LD RF INPUT SEL)
O General purpose output terminal (RSL0 : DIGITAL REC OUT SEL)
O General purpose output terminal (RSL1 : DIGITAL REC OUT SEL)
O General purpose output terminal (RSL2 : DIGITAL REC OUT SEL)
O General purpose output terminal (ADSL : AD INPUT SEL)
Ground terminal (for internal circuit)
+3.3V power terminal (for internal circuit)
O External SRAM address terminal 9
O External SRAM address terminal 8
O External SRAM address terminal 7
O PCM output terminal from Sub DSP
O PCM output terminal from Sub DSP
O PCM output terminal from Sub DSP
Bit clock input terminal for SDOA, SDIB, SDOB signals
Word clock input terminal for SDOA, SDIB, SDOB signals
Ground terminal (for terminal section)
+3.3V power terminal (for internal circuit)
O Non-PCM data detect terminal
Function