Yamaha DSP-Z9 Service Manual page 98

RX-Z9/DSP-Z9
IC56 : M30805SGP (VIDEO TOP P.C.B.)
16 bit μ-COM (Main CPU)
No. Pin function
49 P136
50 P135
51 P134
52
P57/RDY
53 P56/ALE/RAS
54 P55/HOLD
55
P54/HLDA/ALE
56 P133
57 Vss
58 P132
59
Vcc
60 P131
61 P130
62
P53/BCLK/ALE/CLKout
63 P52/RD/DW
64 P51/WRH/BHE/CASH
65 P50/WRL/WR/CASL
66 P127
67 P126
68 P125
69
P47/CS0/A23
70 P46/CS1/A22
71 P45/CS2/A21
72 P44/CS3/A20
73 P43/A19
74 Vcc
75 P42/A18
76
Vss
77 P41/A17
78 P40/A16
79
P37/A15
80 P36/A14
81 P35/A13
82 P34/A12
83 P33/A11
84 P32/A10
85 P31/A9
86
P124
87 P123
88 P122
89 P121
90 P120
91 Vcc
92 P30/A8
93
Vss
94 P27/A7
95 P26/A6
96
P25/A5
97 P24/A4
98 P23/A3
99 P22/A2
100 P21/A1
101 P20/A0
102 P17/D15/INT5
103
P16/D14/INT4
98
Function Name Detail of function
P136 /VMCR Video Microprocessor Reset
EVOL DC Bias Initialize
P135 /ICEV
Enable Output for Toshiba IC (DSP)
P134 CETD
P133 SPC Standby Power Control
Microprocessor Ground
Vss Vss
Enable Output for Toshiba IC (INPUT, REC OUT)
P132 CETIR
Microprocessor Power Supply +5V
Vcc Vcc
Enable Output for Toshiba IC (ANALOG 1)
P131 CETA1
Enable Output for Toshiba IC (ANALOG 0)
P130 CETA0
RD OE
WRH
WE
WRL
P127 SCKA Clock Output for Audio IC
Data Output for Audio IC
P126 SDTA
FULL MUTE FEL/FER Output
P125 /FMTF
CS0
CS1 LV-A573 OUTPUT
LV-A573 INPUT
CS2
A19
Microprocessor Power Supply +5V
Vcc Vcc
A16
Microprocessor Ground
Vss Vss
A17
A16
A15
A14
A13
A12
A11
A10
A9
FULL MUTE SWL/SWR/SW MONO
P124 /FMTSW
P123 /FMTC FULL MUTE CENTER
FULL MUTE SL/SR
P122 /FMTS
FULL MUTE SBR
P121 /FMTSBR
P120 /FMTM FULL MUTE MAIN L/R/SBL
Microprocessor Power Supply +5V
Vcc Vcc
A8
Microprocessor ground
Vss Vss
A7
A6
A5
A4
A3
A2
A1
A0
D15
D14
ON OFF BU
I/OL OL OL
O OL OL
O OL OL
HI
HI
HI
HI
O OL OL
O OL OL
O OL OL
O OL OL
HI
HI
HI
HI
O OL OL
O OL OL
O OL OL
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
O OL OL
O OL OL
O OL OL
O OL OL
O OL OL
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP
KEEP