Yamaha DSP-AX1, Service Manual

Page: 42 / 103

DSP-AX1/RX-V1
DSP-AX1/RX-V1
41
IC1 : M30624FGFP (P.C.B. DSP)
16 bit
µ
-COM (Sub CPU)
No. PORT Name Function I/O No. PORT Name Function I/O
1 P96 /CSA2 CS for AC3D2av O 51 P43 CA3 DSP6 Address Bus 3 O
2 P95 /CSA1 CS for AC3Dav O 52 P42 CA2 DSP6 Address Bus 2 O
3 TB4IN DBL DIR5 Double Rate I 53 P41 CA1 DSP6 Address Bus 1 O
4 P93 /CSD CS for DIR5 O 54 P40 CA0 DSP6 Address Bus 0 O
5 SOUT SDM Tx for AC3Dav/AC3D2av/DIR5 TXD 55 P37 CD15 DSP6 Data Bus 15 I/O
6 SIN SDD Rx for AC3Dav/AC3D2av/DIR5 RXD 56 P36 CD14 DSP6 Data Bus 14 I/O
7 CLK3 SCK CLK for AC3Dav/AC3D2av/DIR5 CLK 57 P35 CD13 DSP6 Data Bus 13 I/O
8 BYTE BYTE Single Chip Mode : VSS 58 P34 CD12 DSP6 Data Bus 12 I/O
9 CNVSS CNVSS Single Chip Mode : VSS, Flush Write : VCC 59 P33 CD11 DSP6 Data Bus 11 I/O
10 P87 NC – OL 60 P32 CD10 DSP6 Data Bus 10 I/O
11 P86 NC – OL 61 P31 CD9 DSP6 Data Bus 9 I/O
12 /RESET /RST Reset from Main RST 62 VCC VCC +5V
13 XOUT XOUT 16MHz 63 P30 CD8 DSP6 Data Bus 8 I/O
14 VSS GND GND 64 VSS VSS GND
15 XIN XIN 16MHz 65 P27 CD7 DSP6 Data Bus 7 I/O
16 VCC VCC +5V 66 P26 CD6 DSP6 Data Bus 6 I/O
17 P85 /NMI +5V I 67 P25 CD5 DSP6 Data Bus 5 I/O
18 INT2 NPCM AC3D2av Non PCM IRQ 68 P24 CD4 DSP6 Data Bus 4 I/O
19 INT1 ERRA AC3D2av Mute IRQ 69 P23 CD3 DSP6 Data Bus 3 I/O
20 INT0 IRQD DIR5 IRQ IRQ 70 P22 CD2 DSP6 Data Bus 2 I/O
21 P81 NC – OL 71 P21 CD1 DSP6 Data Bus 1 I/O
22 P80 /ICD IC for AC3Dav/DIR/DA/AD/DEM O 72 P20 CD0 DSP6 Data Bus 0 I/O
23 P77 96SL fs 96kHz Select (Hi : 96kHz) O 73 INT5 /IRQ62 DSP6 #2 IRQ IRQ
24 P76 /DMT Digital Full Mute O 74 P16 – OL
25 P75 NC – OL 75 INT3 /IRQ61 DSP6 #1 IRQ IRQ
26 P74 TRQ CPU I/F Request O 76 P14 /IC6 DSP6 Initial Clear O
27 P73 MCWC CPU I/F Word Clock O 77 P13 – OL
28 CLK2 MCBC CPU I/F Bit Clock CLK 78 P12 – OL
29 RXD2 MTS CPU I/F Main to Sub RXD 79 P11 – OL
30 TXD2 STM CPU I/F Sub to Main TXD 80 P10 – OL
31 TXD1 TXFL Tx for Flash TXD 81 P07 – OL
32 RXD1 RXFL Rx for Flash RXD 82 P06 – OL
33 CLK1 CLKFL CLK for Flash CLK 83 P05 – OL
34 RTS1 BSYFL BUSY for Flash RTS 84 P04 – OL
35 P63 – OL 85 P03 – OL
36 P62 – OL 86 P02 – OL
37 P61 – OL 87 P01 – OL
38 P60 – OL 88 P00 – OL
39 P57 /WT62 DSP6 #2 Wait I 89 P107 – OL
40 P56 /WT61 DSP6 #1 Wait I 90 P106 – OL
41 P55 /EPM GND for Flash I 91 P105 – OL
42 P54 /CS62 DSP6 #2 Chip Select O 92 P104 MUTO RF DEM MUTO I
43 P53 /CS61 DSP6 #1 Chip Select O 93 P103 CXCA CABLE Coaxial I
44 P52 /WR6 DSP6 Write Enable O 94 P102 CXDV DVD Coaxial I
45 P51 /RD6 DSP6 Read Enable O 95 P101 CXCD CD Coaxial I
46 P50 /CE +5V for Flash I 96 AVSS AVSS GND for Analog I
47 P47 CA7 DSP6 Address Bus 7 O 97 AN0 – AD
48 P46 CA6 DSP6 Address Bus 6 O 98 VREF VREF Reference voltage for AD
49 P45 CA5 DSP6 Address Bus 5 O 99 AVCC AVCC Power supply for Analog
50 P44 CA4 DSP6 Address Bus 4 O 100 P97 /CSAS CS for AC3D2av Sub DSP O