Yamaha YSP-1 Service Manual page 39

IC304 : M30626FHPFP (DSP P.C.B)
Single-Chip 16bit CMOS MICROCOMPUTER (Main CPU)
No. Name Port I/O
S-OUT FL Driver TxD
1 PO96 SOUT4
2 PO95 CLK4 S-CLK FL Driver CLOCK OUT
(Unconnected)
3 PO94 DA1
4 PO93 - -
5 PO92 SOUT3 S-OUT YSS TxD
6 PI91 SIN3 S-IN YSS RxD
7 PO90 CLK3 S-CLK YSS CLOCK
8 BYTE - - When single chip mode is selected: VSS (GND)
9 CNVSS - - When single chip mode is selected: VSS (GND) via resistor (5.1 k-ohms) [For FLASH writing: Vcc]
10 PO87 CMOS OUT YSS CE
11 PO86 CMOS OUT YSS RESET
12 /RESET - - RESET
13 XOUT - - 16MHz OUT
14 VSS - - GND
15 XIN - - 16MHz IN
16 VCC - - Power supply +3.3V
17 PI85 /NMI IN Connected to Vcc via resistor (10 k-ohms)
18 PI84 /INT2 INT-IN INT ADM
19 PI83 /INT1 INT-IN INT DIR
20 PI82 /INT0 INT-IN RS232C for communication RX interruption (connected to Pin 32)
21 PO81 TA4IN OUT
22 PO80 TA4OUT OUT
TA3IN OUT
23 PO77
24 PO76 TA3OUT T-OUT For FL filament (105KHz)
OUT
25 PO75 TA2IN
26 PO74 TA2OUT OUT
IN
27 PI73 /CTS2 Ready(I2C)
28 PO72 CMOS OUT MUTE(I2C)
29 PIO71 SCL I2C-CLK I2C SCL
30 PIO70 SDA I2C-DAT I2C SDA
31 PO67 TxD1 S-OUT For flash writing YDC DATA OUT , For flash writing RS232C TX (Serial I/O-1)
32 PI66 RxD1 S-IN For flash writing YDC DATA IN, For flash writing RS232C RX (Serial I/O-1)
33 PO65 CLK1 S-CLK For FLASH writing YDC CLK
34 PO64 /CTS1 OUT For FLASH writing Busy OUT, For communication RS232C /RTS
35 PO63 TxD0 TX For communication RS232C TX (connected to Pin 31)
36 PI62 RxD0 RX For communication RS232C RX (connected to Pin 32)
37 PO61 CLK0 OUT (Unconnected)
38 PO60 /CTS0 OUT For communication RS232C /CTS
39 PO57 CLKOUT OUT
40 PO56 ALE OUT
41 PI55 /HOLD IN Connected to VSS (GND) via resistor (10 k-ohms)
42 PO54 /HLDA OUT DIR CS
43 PO53 BCLK OUT ADM CS
44 PO52 /RD OUT DIR RESET
45 PO51 /WRH OUT ADM RESET
46 PI50 /WRL IN Connected to Vcc via resistor (10 k-ohms)
47 PO47 /CS3 OUT DAC CS
48 PO46 /CS2 OUT (Unconnected)
49 PO45 /CS1 OUT Power relay output
50 PO44 /CS0 OUT FL Driver RESET(Light off) OUT
51 PO43 CMOS OUT CS OUT to E
52 PO42 CMOS OUT DATA OUT to E
53 PI41 - IN DATA IN from E
Function
(Serial I/O-4)
(Serial I/O-4)
(Serial I/O-3)
(Serial I/O-3)
(Serial I/O-3)
[L:RESET]
(feedback resistor included)
(feedback resistor included)
(NMI function unused)
[O: Pull-up resistor required N-OD] (Serial I/O-2)
[O: Pull-up resistor required N-OD] (Serial I/O-2)
(Pull-down resistor required)(Serial I/O-1)
(UART0)
(UART0)
(For flash writing: L)
(For flash writing: H)
[H: ON]
2
PROM (Pull-down resistor required) [H: DATA transfer]
2 PROM
2
PROM
IC304 : M30626FHPFP (DSP P.C.B)
Single-Chip 16bit CMOS MICROCOMPUTER (Main CPU)
No. Name PORT I/O
CLK OUT to E
54 PO40 CMOS OUT
55 PO37 CMOS OUT
56 PO36 - IN (Design test terminal ··· H: PS protection OFF and 232C are forced for 1Lim setting)
57 PO35 CMOS OUT
58 PO34 CMOS OUT
59 PO33 CMOS OUT
60 PO32 CMOS OUT
61 PO31 CMOS OUT
62 VCC - - Power supply +3.3V
63 PO30 CMOS OUT SWFR Mute
64 VSS - - GND
65 PO27 CMOS OUT OSD TxD
66 PO26 CMOS OUT OSD Enable
67 PO25 CMOS OUT OSD Clock
68 PO24 CMOS OUT
69 PO23 CMOS OUT
70 PO22 CMOS OUT
71 PO21 CMOS OUT
72 PO20 CMOS OUT
73 P17 /INT5 INT-IN PowerDown DETECT INT IN
74 P16 /INT4 INT-IN Standby SW IN
75 P15 /INT3 INT-IN Remote controller IN
76 PO14 CMOS OUT
77 PO13 CMOS OUT PLD Reset
78 PO12 CMOS OUT Analog input selected
79 PO11 CMOS OUT NRESET(TI, BEAMIC, FLASH
80 PO10 CMOS OUT
81 PO07 CMOS OUT
82 PO06 CMOS OUT
83 PO05 CMOS OUT
84 PO04 CMOS OUT
85 PO03 CMOS OUT
86 PO02 - IN (Digital amplifier IC temperature detection) ··· unused
87 PO01 - IN (Digital amplifier IC voltage detection) ··· unused
88 PO00 - IN (Digital amplifier IC current detection) ··· unused
89 A/D7 AN7 A-D IN Destination selection input
90 A/D6 AN6 A-D IN Power voltage detection (PS Protect) IN
91 A/D5 AN5 A-D IN 3.3V power start-up detection IN
92 A/D4 AN4 A-D IN
93 A/D3 AN3 A-D IN Temperature detection (thermistor) IN ··· unused
94 A/D2 AN2 A-D IN Key AD Input 0
95 A/D1 AN1 A-D IN Key AD Input 1
96 AVSS - - Connected to VSS (GND)
97 A/D0 AN0 A-D IN
98 VREF - - A-D, D-A Reference voltage input
99 AVCC - - Connected to VCC terminal (+3.3V)
100 PO97 (SIN4) OUT FL Driver CE OUT
Key Input (A-D) Pull-Up Resistance 10 k-ohms
Ohm 0 k + 1.2k
V ~ 0.30 ~ 0.70
ADKEY 0 VOLUME
INPUT
94pin A/D2 +
ADKEY 1 VOLUME
–
95pin A/D1 -
YSP-1
Function
2
PROM
[L: Normal]
[L: MUTE]
[L: POWER DOWN]
[H: ON]
[L: TV H: VCR]
(Pull-up resistor required) [0 ~ VREF]
[0 ~ VREF]
(Pull-down resistor required) [0 ~ VREF]
(Pull-up resistor required) [0 ~ VREF]
[0 ~ VREF]
(Pull-up resistor required) [0 ~ VREF]
(Pull-up resistor required) [0 ~ VREF]
(Pull-up resistor required) [0 ~ VREF]
[ ~ VCC]
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