Yamaha CDR-S1000 Service Manual page 18

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CDR-S1000
IC4 : FHIB31-70A
ACDR
IOCS16
HINTRQ6
HDMARQ
VSS
IORDY
PDIAG
/HIOW
/HIOR
/HDACK
CSEL
HA0
HA1
HA2
/HCS0
/HCS1
DASP
CK33I
CK33O
VDD
VSS
RA16
RA15
RA14
RA13
RA12
RA11
RA10
RA9
RA8
VSS
RA7
RA6
RA5
RA4
RA3
RA2
RA1
RA0
/OE
NO.
PORT
Name
1
VSS
VSS
2
RD15
CDR_RD15
3
RD14
CDR_RD14
4
RD13
CDR_RD13
5
RD12
CDR_RD12
6
RD11
CDR_RD11
7
RD10
CDR_RD10
8
RD9
CDR_RD9
9
RD8
CDR_RD8
10
VSS
VSS
11
RD7
CDR_RD7
12
RD6
CDR_RD6
13
RD5
CDR_RD5
14
RD4
CDR_RD4
15
RD3
CDR_RD3
16
RD2
CDR_RD2
17
RD1
CDR_RD1
18
RD0
CDR_RD0
19
VDD
VDD
20
VSS
VSS
21
SDIA
CDR_SDIA
22
SDIB
DA_DATA
23
SDOA
CDR_SDOA
24
SDOB
CDR_SDOB
17
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
/W
159
160
I/O
DC
Function
GND
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
GND
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
I/O
T
External RAM data bus
Power supply
GND
I
T
Serial audio data input
I
T
Serial audio data input
O
C
Serial audio data output
O
C
Serial audio data output
80
ICLK
79
LRCI
78
BCKI
77
DINS
76
DOUTS
75
EXTW1
74
SYNC1
73
F641
72
WC1
71
F2561
70
VSS
69
OCLK
68
LRCO
67
BCKO
66
WC3
65
DDO
64
MUTEA
63
MUTEB
62
DIN
VSS
61
60
VDD
59
PO4
58
PO5
57
PO6
56
PO7
55
PO8
54
PO9
53
PI5
52
PI6
51
PI7
50
PI8
49
/DS
48
/CS
47
/WAIT
46
/RD
45
/WR
44
/IRQ
43
FSCNT
42
/IC
41
VSS

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