Yamaha PortaTone PSR-740 Service Manual - Page 6

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Yamaha PortaTone PSR-740 Service Manual
PSR-740/PSR-640
TC203C760HF-002 (XS725A00)
SWP30B (AWM Tone Generator coped with MEG) Standard Wave Processor
(
PIN
NAME
I/O
NO.
1
Vss
2
CA0
I
3
CA1
I
4
CA2
I
5
CA3
I
6
CA4
I
7
CA5
I
8
CA6
I
9
CA7
I
10
CA8
I
11
CA9
I
12
CA10
I
13
CA11
I
14
VSS
15
CD0
I/O
16
CD1
I/O
17
CD2
I/O
18
CD3
I/O
19
CD4
I/O
20
CD5
I/O
21
CD6
I/O
22
CD7
I/O
23
CD8
I/O
24
CD9
I/O
25
CD10
I/O
26
CD11
I/O
27
CD12
I/O
28
CD13
I/O
29
CD14
I/O
30
VDD
31
VSS
32
CD15
I/O
33
/CS
I
34
/WR
I
35
/RD
I
36
VDDS
37
SYSH0
O
38
SYSH1
O
39
SYSH2
O
40
SYSH3
O
41
SYSH4
O
42
SYSH5
O
43
SYSH6
O
44
SYSH7
O
45
KONO0
O
46
KONO1
O
47
KONO2
O
48
KONO3
O
49
VSS
50
SYSL0
I/O
51
SYSL1
I/O
52
SYSL2
I/O
53
SYSL3
I/O
54
SYSL4
I/O
55
SYSL5
I/O
56
SYSL6
I/O
57
SYSL7
I/O
58
KONI0
I
59
KONI1
I
60
VDDS
I
61
VSS
62
KONI2
I
63
KONI3
I
64
DAC0
O
65
DAC1
O
66
WCLK
O
67
MELO0
O
68
MELO1
O
69
MELO2
O
70
MELO3
O
71
MELO4
O
72
MELO5
O
73
MELO6
O
74
MELO7
O
75
VDDS
76
ADLR
O
77
MELI0
I
78
MELI1
I
79
MELI2
I
80
MELI3
I
81
MELI4
I
82
MELI5
I
83
MELI6
I
84
MELI7
I
85
VSS
86
/RCAS
O
87
RA8
O
88
RA7
O
89
RA6
O
90
VDD
91
VSS
92
RA5
O
93
RA4
O
94
RA3
O
95
RA2
O
96
RA1
O
97
RA0
O
98
/RRAS
O
99
/RWE
O
100
VSS
101
RD7
I/O
102
RD6
I/O
103
RD5
I/O
104
RD4
I/O
105
RD3
I/O
106
RD2
I/O
107
RD1
I/O
108
RD0
I/O
109
VSS
110
RD17
I/O
111
RD16
I/O
112
RD15
I/O
113
RD14
I/O
114
RD13
I/O
115
RD12
I/O
116
RD11
I/O
117
RD10
I/O
118
RD9
I/O
119
RD8
I/O
120
VDDS
16
FUNCTION
(Ground)
Address bus internal register
(Ground)
Data bus of internal register
(Power supply)
(Ground)
Chip select
Write strobe
Read strobe
(Power supply)
NSYS/LNSYS upper 16 bits
Key on data
(Ground)
NSYS input/LNSYS output lower 8 bits
Key on data
(Power supply)
(Ground)
DAC output
DAC0/DAC1 word clock
MEL wave data output
(Power supply)
ADC word clock
MEL wave data input
(Ground)
DRAM column address strobe
(Power supply)
(Ground)
DRAM address bus
DRAM row address strobe
DARM write enable
(Ground)
(Ground)
DRAM data bus
(Power supply)
)
PIN
NAME
I/O
NO.
121
VSS
122
HMD0
I/O
123
HMD1
I/O
124
HMD2
I/O
125
HMD3
I/O
126
HMD4
I/O
127
HMD5
I/O
128
HMD6
I/O
129
HMD7
I/O
Wave memory data bus (Upper data memory)
130
HMD8
I/O
131
HMD9
I/O
132
HMD10
I/O
133
HMD11
I/O
134
HMD12
I/O
135
HMD13
I/O
136
HMD14
I/O
137
HMD15
I/O
138
VSS
139
HMA0
O
140
HMA1
O
141
HMA2
O
142
HMA3
O
143
HMA4
O
144
HMA5
O
145
HMA6
O
146
HMA7
O
147
HMA8
O
148
HMA9
O
149
HMA10
O
150
VSS
151
VDD
152
HMA11
O
Wave memory address bus (Upper 16 bits)
153
HMA12
O
154
HMA13
O
155
HMA14
O
156
HMA15
O
157
HMA16
O
158
HMA17
O
159
HMA18
O
160
HMA19
O
161
HMA20
O
162
HMA21
O
163
HMA22
O
164
HMA23
O
165
HMA24
O
166
VSS
167
/MRAS
O
RAS when DRAM(s) is connected to wave memory
168
/MCAS
O
CAS when DRAM(s) is connected to wave memory
169
/MOE
O
Wave memory output enable
170
/MWE
O
Wave memory write enable
171
VSS
172
LMD0
I/O
173
LMD1
I/O
174
LMD2
I/O
175
LMD3
I/O
176
LMD4
I/O
177
LMD5
I/O
178
LMD6
I/O
179
LMD7
I/O
180
VDDS
Wave memory data bus (Lower data memory)
181
VSS
182
LMD8
I/O
183
LMD9
I/O
184
LMD10
I/O
185
LMD11
I/O
186
LMD12
I/O
187
LMD13
I/O
188
LMD14
I/O
189
LMD15
I/O
190
VSS
191
LMA0
O
192
LMA1
O
193
LMA2
O
194
LMA3
O
195
LMA4
O
196
LMA5
O
197
LMA6
O
198
LMA7
O
199
LMA8
O
200
LMA9
O
201
LMA10
O
202
LMA11
O
203
VSS
204
LMA12
O
Wave memory address bus (Lower data memory)
205
LMA13
O
206
LMA14
O
207
LMA15
O
208
LMA16
O
209
LMA17
O
210
VDD
211
VSS
212
LMA18
O
213
LMA19
O
214
LMA20
O
215
LMA21
O
216
LMA22
O
217
LMA23
O
218
LMA24
O
219
VSS
220
SYO
O
Sync. signal for master clock
221
SYOD
O
Sync. signal for HCLK/QCLK
222
QCLK
O
1/12 master clock (64 Fs)
223
HCLK
O
1/6 master clock (128 Fs)
224
CK256
O
1/3 master clock (256 Fs)
225
SYSCLK
O
1/2 master clock (384 Fs)
226
VDDS
227
SYI
I
Sync. clock
228
MCLKI
I
Master clock input
229
MCLKO
O
Master clock output
230
VDD
231
XIN
I
Crystal osc. input
232
XOUT
O
Crystal osc. output
233
VSS
234
/IC
I
Initial clear
235
CHIP2
I
2 chips mode enable
236
SLAVE
I
Master/Slave select when 2 chips mode
237
/TESTO
I
238
/ACI
I
Test pin
239
DCTEST
I
240
VDDS
FUNCTION
(Ground)
(Ground)
(Ground)
(Power supply)
(Ground)
(Ground)
(Power supply)
(Ground)
(Ground)
(Ground)
(Power supply)
(Ground)
(Ground)
(Power supply)
(Power supply)
(Ground)
(Power supply)