Yamaha RX-SL80 Service Manual page 38

RX-SL80
IC304: YSS948-V (DIGITAL P.C.B)
ADAM
Category No. Name
Power Supply 94 VSS
105
106
117
118
123
129
130
139
140
1 AHVSS
2 AHVSSG
3 DVSS
141 AVSSR
Initial Clear 131 nIC
Clock 18 XI
19 XO
µ
-COM Interface 126 nMICS
125 MISCK
124 MISI
122 MISO
Audio Interface 32 SDIMCK
31 SDIBCK
30 SDIWCK
26 SDI3
27 SDI2
28 SDI1
29 SDI0
38 SDOMCK
34 SDOBCK Is/O
37 SDOWCK
44 SDO3
43 SDO2
40 SDO1
39 SDO0
External Memory Interface 112 MEMA18
58 MEMA17
73 MEMA16
72 MEMA15
74 MEMA14
59 MEMA13
75 MEMA12
67 MEMA11
110 MEMA10
66 MEMA9
65 MEMA8
76 MEMA7
81 MEMA6
82 MEMA5
83 MEMA4
84 MEMA3
90 MEMA2
91 MEMA1
92 MEMA0
104 MEMD7
38
I/O Function
- Ground terminal
Ground terminal 2 for PLL section
Ground terminal 3 for PLL section
Ground terminal 4 for PLL section
Ground terminal 1 for PLL section
- Hardware reset input terminal
I Clock input terminal
O Clock output terminal for crystal oscillator oscillation
Chip select input terminal for µ-COM interface
Is
Clock input terminal for µ-COM interface
Is
Address,read/write control,data input terminal for µ-COM interface
I
Data output terminal for µ-COM interface
Ot
Is Master clock input terminal on input side of audio interface
Is Bit clock input/output terminal on input side of audio interface
I Word clock terminal on input side of audio interface
I Serial data input terminal 3 for Audio Interface
I Serial data input terminal 2 for audio interface
I Serial data input terminal 1 for audio interface
I Serial data input terminal 0 for audio interface
Ot Master clock output terminal on output side of audio interface
Bit clock input/output terminal on output side of audio interface
I/O Word clock input/output terminal on output side of audio interface
O Serial data output terminal 3 for audio interface
O Serial data output terminal 2 for audio interface
O Serial data output terminal 1 for audio interface
O Serial data output terminal 0 for audio interface
O External memory address output terminals 18 to 0
I/O
External memory data input/output terminals 7 to 0
IC304: YSS948-V (DIGITAL P.C.B)
ADAM
Category No. Name I/O
External Memory Interface 103 MEMD6 I/O
102 MEMD5
101 MEMD4
99 MEMD3
98 MEMD2
97 MEMD1
96 MEMD0
109 nMEMCE O
111 nMEMOE O
68 nMEMWE O
Status Port 134 nINT O
135 nMUTE O
133 ZEROFLG O
13 STATUS7 O
12 STATUS6
11 STATUS5
10 STATUS4
116 STATUS3
115 STATUS2
114 STATUS1
113 STATUS0
General Purpose I/O Port 57 IOPORT7 I(+)/O
56 IOPORT6
55 IOPORT5
54 IOPORT4
53 IOPORT3
52 IOPORT2
47 IOPORT1
46 IOPORT0
Test 16 TEST Is
17
24
25
132
I/O symbols
I: Digital Input
Is: Schmidt Input
O: Digital Output
Ot: 3-State Output
I/O: Digital Input/Output
I(+)/O: Pulled up for input,not pulled up for output
Function
External memory data input/output terminals 7 to 0
External memory chip select output terminal
External memory output enable output terminal
External memory write enable output terminal
Interrupt request output terminal
Auto mute period output terminal
Continuous zero data input detect terminal
Status data output Terminals 7 to 0
General Purpose Input/Output Port Terminals 7 to 0
Test Terminal