Yamaha DG-Stomp Service Manual page 16

DG-Stomp
YSS910-S (XV988A00) DSP6 (Digital Signal Processor)
PIN
NAME I/O
NO.
1 Vdd Power supply (3.3 V)
2 Vss Ground
3 XI I System master clock input (60 MHz or 30 MHz)
4 XO O System master clock output (High or 30 MHz)
5 Vdd Power supply (5 V)
/SYNCI I Sync. signal input
6
7 /SYNCO O Sync. signal output
8 Vdd Power supply (5 V)
9 CKI I System clock input (30 MHz)
10 CKO O System clock output (30 MHz)
11 CKSEL I System master clock select (0: 60 MHz, 1: 30 MHz)
12 Vss Ground
13 MCKS I Serial I/O master clock input (128 x Fs)
14 /SSYNC I Serial I/O Sync. signal output
15 /IC I Initial clear
16 /TEST I Test mode setting (0: Test, 1: Normal)
17 BTYP I Data bus type select (0: 8 bit, 1: 16 bit)
18 /IRQ O IRQ output
19 TRIG I/O Trigger signal input/output
20 Vdd Power supply (5 V)
Vss Ground
21
22 /CS I chip select signal input
23 /WR I Write signal input
24 /RD I Read signal input
25 CA7 I/O
26 CA6 I/O
27 CA5 I/O
28 CA4 I/O Address bus of internal register
29 CA3 I/O
30 CA2 I/O
31 CA1 I/O
32 Vss Ground
33 Vdd Power supply (3.3 V)
34 CD15 I/O
35 CD14 I/O
CD13 I/O
36
37 CD12 I/O
38 CD11 I/O
Data bus of internal register
39 CD10 I/O
40 CD09 I/O
41 CD08 I/O
42 CD07 I/O
43 CD06 I/O
44 Vss Ground
45 Vdd Power supply (3.3 V)
46 Vdd Power supply (5 V)
47 CD05 I/O
48 CD04 I/O
49 CD03 I/O
Data bus of internal register
50 CD02 I/O
CD01 I/O
51
52 CD00 I/O
53 /WAIT O WAIT output
54 Vss Ground
55 SI0 I
56 SI1 I
57 SI2 I
58 SI3 I
Serial data input
59 SI4 I
60 SI5 I
61 SI6 I
62 SI7 I
63 Vss Ground
64 Vdd Power supply (5 V)
65 SO0 O
SO1 O
66
67 SO2 O
68 SO3 O
Serial data output
69 SO4 O
70 SO5 O
71 SO6 O
72 SO7 O
73 Vss Ground
74 DB00 I/O
75 DB01 I/O
76 DB02 I/O
77 DB03 I/O
78 DB04 I/O
79 DB05 I/O
80 DB06 I/O Parallel data bus
DB07 I/O
81
82 DB08 I/O
83 DB09 I/O
84 DB10 I/O
85 DB11 I/O
86 DB12 I/O
87 Vdd Power supply (5 V)
88 Vdd Power supply (3.3 V)
16
PIN
FUNCTION
NO.
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
NAME I/O
89 Vss Ground
90 DB13 I/O
91 DB14 I/O
92 DB15 I/O
93 DB16 I/O
DB17 I/O
94
Parallel data bus
95 DB18 I/O
96 DB19 I/O
97 DB20 I/O
98 DB21 I/O
99 DB22 I/O
Vss Ground
Vdd Power supply (3.3 V)
DB23 I/O
DB24 I/O
DB25 I/O
DB26 I/O
DB27 I/O Parallel data bus
DB28 I/O
DB29 I/O
DB30 I/O
DB31 I/O
TIMO/DBOB I/O Timing signal output/ Parallel data bus output/ input
Vss Ground
Vdd Power supply (5 V)
DA00 I/O
DA01 I/O
DA02 I/O
DA03 I/O
Memory data bus
DA04 I/O
DA05 I/O
DA06 I/O
DA07 I/O
Vss Ground
DA08 I/O
I/O
DA09
DA10 I/O
DA11 I/O
Memory data bus
DA12 I/O
DA13 I/O
DA14 I/O
DA15 I/O
Vss Ground
Vdd Power supply (3.3 V)
(n.c) Not used
Vdd Power supply (5 V)
DA16 I/O
DA17 I/O
DA18 I/O
DA19 I/O
Memory data bus
I/O
DA20
DA21 I/O
DA22 I/O
DA23 I/O
Vss Ground
DA24 I/O
DA25 I/O
DA26 I/O
DA27 I/O
Memory data bus
DA28 I/O
DA29 I/O
DA30 I/O
DA31 I/O
Vdd Power supply (5 V)
Vss Ground
A00 O
A01 O
A02 O
A03 O
A04 O
Memory address (SRAM, PSRAM, DRAM)
A05 O
A06 O
A07 O
A08 O
A09 O
Vss Ground
Vdd Power supply (3.3 V)
A10 O
Memory address (SRAM, PSRAM, DRAM)
A11 O
A12 O
A13 O Memory address (SRAM, PSRAM)
A14 O
A15/RAS O Memory address (SRAM, PSRAM), /RAS (DRAM)
A16/CAS O Memory address (SRAM, PSRAM), /CAS (DRAM)
A17/CE O Memory address (SRAM), /CE (PSRAM)
/WE O Memory write enable signal
/OE O Memory output enable signal
Vdd Power supply (5 V)
DM: IC8, IC9
FUNCTION