Ic Data - Yamaha RX-V730 Service Manual

I IC DATA
IC441: M30624MGA (FUNCTION P.C.B.)
16bit µ-COM (Main CPU)
No. Port No. Function name
1 SOUT4 DTEV
2 CLK4 CLEV
3 DA1 FAN
4 P93 PRI
5 SOUT3 SDM
6 SIN3 SDD
7 CLK3 SCK
8 BYTE BYTE
9 CNVss CNVss
10 P87 RIMA
11 P86 RIMB
12 RESET RESET
13 Xout Xout
14 Vss Vss
15 Xin Xin
16 Vcc Vcc
17 NMI NMI
18 INT2 VSY
19 INT1 INT938
20 P82 ERY
21 P81 MRY
22 P80 HPRY
23 P77 /HP
24 P76 PRY
25 P75 DMT
26 P74 /ICD
27 P73 CSY
28 CLK2 SCK0
29 RXD2 /CSINT
30 TXD2 SDF
31 TXD1 TXDF
32 RXD1 RXDF
33 CLK1 CLKF
34 P64 BSY
35 TXD0 SDTR
36 RXD0 SDRR
37 CLK0 SCKR
38 P60
39 P57 CST
40 P56 CSR
41
42 P54 CSC
43 P53 /CSCS
P07/D7 81
P06/D6
82
P05/D5 83
P04/D4 84
P03/D3
85
P02/D2
86
P01/D1 87
P00/D0 88
P107/AN7
89
P106/AN6
90
P105/AN5 91
P104/AN4 92
P103/AN3
93
P102/AN2 94
P101/AN1 95
AVSS
96
P100/AN0
97
VREF 98
AVCC 99
P97/ADTRG/SIN4
100
I/O Detail of function
SO Electronic Volume IC DATA
SCK Electronic Volume IC CLOCK
DA Fan Control
I Protection Excess Current Detect
SO YSS938 TxD
SI YSS938 RxD
O YSS938 CLOCK
VSS Vss: when single chip mode is used
Vss/Vcc Vss: when single chip mode is used, Vcc: when flash writing is used
O Power Limiter A
O Power Limiter B
I Reset
OPEN Oscillator Out
µ-COM Ground
Vss
10MHz Oscillator in
µ-COM power supply, +5V
Vcc (BU)
Vcc (BU) Connect to Vcc because it is unused.
INT Vertical Synchronization Detect
INT YSS938 IPINT/MUTE/DIR
O Effect SP Relay Output
O Main SP Relay Output
SO Headphone Relay Output
I (IPU) Effect Detect
O Power Relay Output
O DIG FULL MUTE
O YSS938 /DA /AD /CODEC /DEM
O YSS938 CE
O FL Driver CLOCK
I ( PU) CS-DSP INT
O ( PU) FL Driver TxD
FLASH Flash ROM Serial Write Data Transmission
FLASH Flash ROM Serial Write Data Reception
FLASH Flash ROM Serial Clock
FLASH Flash BUSY Signal Output
SO RDS/OSD TxD
SI RDS RxD
SCK RDS/OSD CLOCK
O EEPROM CE
I CS493x TxD
O CS493x RxD
GND For Flash Writing (LO)
O CS493x CLOCK
O CS493x CS
RX-V730/RX-V730RDS/RX-V630/RX-V630RDS
HTR-5560/HTR-5560RDS/DSP-AX630/DSP-AX630SE
50 P44/CS0
P45/CS1
49
48 P46/CS2
47 P47/CS3
P50/WRL/WR
46
P51/WRH/BHE
45
44 P52/RD
43 P53/BCLK
P54/HLDA
42
P55/HOLD
41
40 P56/ALE
39 P57/RDY/CLKOUT
P60/CTS0/RTS0
38
37 P61/CLK0
36 P62/RXD0
P63/TXD0
35
P64/CTS1/RTS1/CTS0/CLKS1
34
33 P65/CLK1
32 P66/RXD1
P67/TXD1
31
43