16Bit Μ-Com (Main Cpu) - Yamaha RX-V3300 Service Manual

RX-V3300/DSP-AZ2
IC520 : M30805SGP (FUNCTION P.C.B)
16bit µ-COM (Main CPU)
P10/D8 109
P07/D7 110
P06/D6 111
P05/D5 112
P04/D4 113
P114 114
P113 115
P112 116
P111 117
P110 118
P03/D3 119
P02/D2 120
P01/D1 121
P00/D0 122
P157 123
P156 124
P155 125
P154 126
P153 127
P152 128
P151 129
Vss 130
P150 131
Vcc 132
P107/AN7/KI3 133
P106/AN6/KI2 134
P105/AN5/KI1 135
P104/AN4/KI0 136
P103/AN3 137
P102/AN2 138
P101/AN1 139
Avss 140
P100/AN0 141
Vref 142
Avcc 143
P97/Adtrg/RxD4/SCL4/STxD4 144
No. Port No. Function name
1 TxD4 TXDR
2 CLK4 RTS
3 P94 CTS
4 DA0 FAN
5 TxD3 SDTN
6 RxD3 RXRDS
7 CLK3 SCKN
8 P146 CEB
9 P145 CES
10 P144 RDSE
11 P143 CEF
12 P142 /FLR
13 P141 RDTP
14 P140 SDTP
15 BYTE BYTE
16 CNVss CNVss
17 P87 BT232C
18 P86 BTYDC
19 RESET RESET
20 Xout Xout
21 Vss Vss
22 Xin Xin
23 Vcc Vcc
24 NMI NMI
25 INT2 REM1
52
M30805SGP
I/O Detail of function
SO 232C transmission data / Yokokawa data transmission
SCK 232C RTS output / Yokokawa clock input
I 232C CTS input
DA/O Fan control
SO NONE AUDIO serial transmission data
SI RDS reception / FREQ SW (R VER)
SCK NONE AUDIO serial clock
O/I BU2092 CE / ZONE 2 presence/absence
O/I On-screen enable output / N/P format discrimination
O/I RDS enable / RDS presence/absence
I/O FL enable / Model type discrimination 0
I/O FL IC reset / Model type discrimination 1
I PLL IC reception data
I/O PLL IC transmission data / TUNER discrimination
Vss Vss: when 16 bit data used
Vcc Vcc: when in microprocessor mode
I Boot terminal for RS-232C / 6ch input key
I Boot terminal for Yokokawa tool
I Reset
OPEN Oscillation output
Vss Ground for microprocessor
12MHz Oscillation input
Vcc Power for microprocessor +5V
Unused
INT (LO edge) Remote control pulse input
72 P44/CS3/A20
71 P45/CS2/A21
70 P46/CS1/A22
69 P47/CS0/A23
68 P125
67 P126
66 P127
65 P50/WRL/WR/CASL
64 P51/WRH/BHE/CASH
63 P52/RD/DW
62 P53/BCLK/ALE/CLKout
61 P130
60 P131
59 Vcc
58 P132
57 Vss
56 P133
55 P54/HLDA/ALE
54 P55/HOLD
53 P56/ALE/RAS
52 P57/RDY
51 P134
50 P135
49 P136
48 P137
47 P60/CTS0/RTS0
46 P61/CLK0
45 P62/RXD0
44 P63/TXD0
43 P64/CTS1/RTS1/CTS0/CLKS1
42 P65/CLK1
41 Vss
40 P66/RXD1
39 Vcc
38 P67/TXD1
37 P70/TXD2/SDA/TA0out
Power ON Power OFF Backup
O OL OL
I/O OL OL
I I OL
I I OL
SO OL OL
SI I OL
SCK OL OL
I/O I/OL OL
I/O I/OL OL
I/O I/OL OL
I/O I/OL OL
O OL OL
I I OL
I/O OL OL
Vss Vss Vss
Vcc Vcc Vcc
I I OL
I I OL
I I OL