Sega GENESIS II Service Manual page 24

Pin
I
I
Pin
110
1
r
No.
Name
11/0
Function
No.
Name Function
160 I VA7 200 ZDO
161
1
VA8 201 ZDI
1621
VA9
202
ZD2
163 VAIO
203
ZD3
1/0 Z80 Data Bus.
164 VAll
204
ZD4
165 VA12 205 ZD5
166
VA13
206
ZD6
167 VA14
207
ZD7
168 VAlS
1!0
68000 Address Bus.
208
VDD
-
Power Supply.
169 VA16
170 VA17
171 VA18
172
VA19
173
VA20
174 VA21
175
VA22
!
176 VA23
I
177 SOUNDAVDD
-
I
178 PSG(ANWNG)
0
VIDEO+ PSG
179
SOUNDAVSS
-
180 VSS
-
GND
181
-INT 0
Z80 Interface Signals.
182 - BR
0
183 - BGACK
1/0
184 - BG
I 68000 Interface Signals.
185 - IPLI
0
·•
186 - IPL2
I
• 187
-IORQ 0
i
'188
-ZRD I
!
189
-ZWR 1/0
Z80 Interface Signals.
190 - Ml I
191 -AS
192 -UDS
193
-LDS
1/0
68000 Interface Signals.
194 R/W
195
-DTAK
196 -UWR
0
P-SRAM Interface.
197 -LWR
1/0
198
- CASO 1/0
199
- RASO- 0
P-SRAM Interface.
24