Sega CD II - Page 15

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IC101 CUSTOM CHIP
IC MCE3
Pans No . : 315-5632
•TopView
157
208
156
.o
/NDEX
•
• Description
No . 1/0
Pin Name
1
0
OCK25
2 0
OB RAM
3 -
Vss
4 I OXBROM
5 I
!ROM
6 I
ICASO
7
I
ILWR
8 I
IUWR
9
I
!ASEL
JO
-
Vnn
11
I IRAS2
12 I ICAS2
13 I IFDC
14
I IFRES
15
-
Vs..,,
16
0
OERES
17
l!O
BEA DO
18
l!O
BEAD!
19
1/0
BEAD2
20
l!O
BEAD3
21
l!O
BEAD4
22
1/0
BEADS
23
l!O
BEAD6
24
1
/0
BEAD7
25
1/0
BEDS
26 - Vs..,,
27
-
Vnn
28
1/0 BED9
29
1/0
BEDlO
30
1/0 BEDll
31
1/0
BED12
32
1/0
BED13
33
1/0
BED14
34
1/0 BED15
3S
0 OERAS
36
0
OECAS
37
0
OEOE
3S
-
Vss
39
0 OEWE
40
0
OORAS
41
0 OOCAS
42
0 OOOE
105
0
104
0
53
52
No. 1/0
Pin Name
43
-
Vnn
44
0
OOWE
45
1/0
BO ADO
46
1/0
BOADl
47
l!O
BOAD2
4S
1/0
BOAD3
49
l!O
BOAD4
50 -
Vss
51
l!O
BOAD5
52
l!O
BOAD6
53
1/0
BOAD7
54
1/0
BODS
55
1/0
BOD9
56
1/0
BODIO
57
1/0
BODI I
5S
1/0
BOD12
59
1/0
BOD13
60
-
Vs..,,
61 -
Vnn
62
1/0
BOD14
63
1/0
BOD15
64 0 OLEDR
65
0 OLEDG
66
0
OLATCH
67
0 OSHFf
6S
0
OATT
69
0
ODTM
70
I
IWFCK
71
I I SCOR
72 -
Vs.<:.
73 I I SBSO
74
0
OEXCK
75 I I LR CK
76
I
!DATA
77
I IC2PO
7S
1/0
BDB3
79
-
Ynn
80
1/0
BDB2
SI
1/0
BDBl
82 1/0
BOBO
83 0
OHOCK
84 I ICKSO
No.
1/0
Pin Name No . 1/0
Pin Name
S5
v
14 7 -
Vnn
S6
IIRQ 148
1/0
8D9
87
IDXM 149 1/0 8Dl0
SB
I
!COCK
lSO 1/0 8Dll
89
0
OX PCM lSl
1/0
8012
90
I
ID TEN
1S2 1/0 8Dl3
91
1
!WAIT 1S3
1/0
8Dl4
92
0 OHRD
1S4
-
Vss
93
I
IINT
15S
1/0 8DlS
94
0
OCDC
1S6
1/0
BPRAO
95
0
OPROE
1S7
1/0 8PRA1
96
v
1S8
1/0 8PRA2
97
v
1S9
1/0 8PRA3
98
0
OC2LR 160
l!O
BPRA4
99
I
IA19 161
1/0
8PRA5
100
1
IA18 162
1/0 BPRA6
101
I
1A17
163
l!O
BPRA 7
102
I
IA16 164
-
Vs.<:.
103
I IAIS 16S
-
Vnn
104
I IA14
166
1/0
8PRA8
lOS
1/0 BA13
167
0
OPRRAS
106
1/0 BA12 168
0 OPRCAS
107
v
169
0 OPRUWE
108
1/0 BAH
170
0 OPRLWE
109
1/0
BAIO 171
l!O IVA!
llO
1/0
BA9
172
1/0
IVA2
111
1/0 BAB
173
1/0
IVA3
112
1/0
BA7 174
110
IVA4
113
1/0
BA6 175
1/0
!VAS
114
v
176
-
Vss
115
1/0 BAS
177
1/0
IVA6
116
1/0
BA4 178
1/0
IVA7
117
l!O
BA3
179
1/0
!VAS
118
1/0
BA2 180
1/0
IVA9
119
v
181 1/0
IVAIO
120
1/0 BAI
182 l!O
!VAii
12 1 I IFCO 183 -
Von
122 I IFCl 184
1/0
IVA12
123
0
OIPLD 185
1/0
IVA13
124
0 OIPLl
1S6
1/0
IVA14
12S
0 OIPL2
1S7
1/0
IVAlS
126
0
OVPA lSS
1/0
IVA16
127
0
ORES ET 1S9 - Vs..,,
128
0
OHALT 190 1
IVA17
129
0 OCLK
191
1/0
BVDO
130
v
192
1/0
BVDI
131
v
193
1/0
BVD2
132 0 ODTACK
194
1/0
BVD3
133 I IRXW 195
1/0
BVD4
134 1
IXLDS 196 1/0
BVD5
13S I IXUDS 197
1/0
BVD6
136 I IXAS 198
1/0
BVD7
137
1/0 BOO
199
1/0
BVD8
138
1/0
BDI
200
-
Vss
139
1/0 BD2
201
-
Vnn
140
1/0 BD3 202 1/0
BVD9
141
1/0 804 203
1/0
BVDlO
142
v
204
1/0
BVDll
143
1/0
BD5 20S
1/0
BVD12
144
1/0
806 206
1/0
BVD13
145
1/0
BD7
207 1/0
BVD14
146
1/0 BDS 208 1/0
BVDIS
19