Yamaha AVR-S80, Service Manual

Page: 36 / 86

AVR-S80/NX-SW80
36
AVR-S80/NX-SW80
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IC DATA
IC1: M30624FGAFP (MAIN P.C.B.)
CPU
No. Function name Port No. I/O Detail of function
1 P96 SOUT4 S-OUT Electronic Volume IC DATA (Serial I/O-4)
2 P95 CLK4 S-CLK Electronic Volume IC CLOCK (Serial I/O-4)
3 P94 DA1 OUT
4 P93 (DA0) OUT
5 P92 SOUT3 S-OUT [SDM] YSS938 DATA OUT (Serial I/O-3)
6 P91 SIN3 S-IN [SDD] YSS938 DATA IN (Serial I/O-3)
7 P90 CLK3 S-CLK [SCK] YSS938 CLOCK OUT (Serial I/O-3)
8 BYTE − − Connect to Vss (GND).
9 CNVSS − − Connect to Vss (GND) via Resistor (5.1 k-ohms) [For flash Writing: Vcc]
10 P87 CMOS OUT
11 P86 COMS OUT
12 /RESET − − Reset [0: Reset]
13 Xout − − 10MHz OUT (with built-in feedback resistor)
14 Vss − − GND
15 Xin − − 10MHz IN (with built-in feedback resistor)
16 Vcc − − Power supply, +5V
17 P85 /NMI IN Connect to Vcc (GND) via Resistor (10 k-ohms) (NMI function unused)
18 P84 /INT2 INT-IN
19 P83 /INT1 INT-IN [INT938] YSS938 IPINT/MUTE/DIR
20 P82 (/INT0) OUT Effect SP Relay Output [1: ON]
21 P81 CMOS OUT Main SP Relay Output [1: ON]
22 P80 CMOS OUT Power Relay Output (SW) [1: ON]
23 P77 − IN Headphone Detect (Pull-up resistor required) [1: being used]
24 P76 CMOS OUT Power Relay Output (Center Unit) [1: ON]
25 P75 CMOS IN Subwoofer Detect Input (Pull-up resistor required) [1: SW provided]
26 P74 CMOS OUT [/ICD] YSS938 /DA /AD /CODEC /DEM OUT
27 P73 /CTS2 OUT [CSY] YSS938 CE OUT
28 P72 CLK2 S-CLK FL Driver CLOCK OUT (Serial I/O-2)
29 P71 RxD2 IN CS-DSP INT
30 P70 TxD2 N-OUT FL Driver TxD [Pull-up resistor required] (Serial I/O-2)
31 P67 TxD1 S-OUT DATA OUT to EEPROM/DATA OUT to Flash Writer (Serial I/O-1)
32 P66 RxD1 S-IN DATA IN from EEPROM/DATA IN from Flash Writer (Serial I/O-1)
33 P65 CLK1 S-CLK CLK OUT to EEPROM/CLK IN from Flash Writer (Serial I/O-1)
34 P64 /CTS1 OUT Busy OUT to Flash Writer
35 P63 TxD0 S-OUT (Serial I/O-0)
36 P62 RxD0 S-IN (Serial I/O-0)
37 P61 CLK0 S-CLK (Serial I/O-0)
38 P60 /CTS0 OUT
39 P57 CLKOUT OUT [CSR] CS493x TxD
40 P56 ALE IN [CST] CS493x RxD
41 P55 /HOLD IN Connect to Vss (GND) via Resistor (10 k-ohms) (For Flash Writing: L)
42 P54 /HLDA OUT [CSC] CS493x CLOCK OUT
43 P53 BCLK OUT [/CSCS] CS493x CS OUT
44 P52 /RD OUT [/ICCS] CS493x RESET OUT
45 P51 /WRH OUT [/CSPLD] DIG EXTERNAL IC CE OUT (when PLD is used)
46 P50 /WRL IN Connect to Vcc via Resistor (10 k-ohms) (For Flash Writing: H)
47 P47 /CS3 OUT
48 P46 /CS2 OUT CE OUT to EEPROM [1: DATA Transfer]
49 P45 /CS1 OUT
50 P44 /CS0 OUT FL Driver RESET (Light OFF) OUT
51 P43 CMOS OUT PLL/RDS IC TxD
52 P42 - IN PLL IC RxD (Pull-up Resistor required)
53 P41 CMOS OUT PLL/RDS IC CLOCK
54 P40 CMOS OUT FL Driver CE OUT [0: Address 1: Data]
55 P37 - IN TUNER STEREO/MONO IN (Pull-up Resistor required) [0: STEREO]
56 P36 CMOS OUT TUNER MUTE OUT
57 P35 - IN TUNER STATION IN (Pull-up Resistor required) [0: Station provided]
58 P34 CMOS OUT RDS Enable [0: Address 1: Data]
59 P33 CMOS OUT PLL IC Chip Enable OUT [0: Address 1: Data]