Sega GENESIS II User Manual

~!PARTS SPECIFICATION
~.L_IC~. '~.•.·.r IC ~. C>6aHCOOOCP8 IC MC68HCOOOFN8
: . '· & Pa~ No.: 315-0685-A Parts No.: 315-0686-A
1 ·c·
; • Outside View
Pin
Name
1/0 Function
No.
41
RES
1/0
Reset
42
VPA
I
Valid Peripheral Address.
43
IPL2
I
Interrupt
Priority Level 2.
9 168
61
44 IPI...o
I
Interrupt
Priority Level 0.
60
45
FC, 0 Function Code Output l.
46
N!C
-
N/C
47
A2
0
Address Bus 2.
48
As
0
Address Bus 5.
~ 49
Aa
0
Address Bus 8.
I so
AIU
0
Address Bus 10.
f
0
Address Bus II.
51
Au
44
. 52
A12
0
Address Bus 12.
27
43
. 53
A,s
0 Address Bus 15.
54 A,ti
0
Address Bus 18.
~nnnnnnn~AAnnn~
. .. . . . .. . ....
55
Vee
I Power Input.
56
Vss
I
GND.
:x.. • Description
57
An
0
Address Bus 23.
Pin
Name
1/0
Function
No.
58
D,~
1/0
Data bus 14.
59
Du
l/0
Data bus II.
Pir:
Name
1/0 Function
No.
I N/C
-
N/C
21
A ..
0
Address Bus 16.
60
D~ 1/0
Data bus 9.
2 DTACK I Data Transfer Acknowledge. 22 A,1
0
Address Bus 17.
61
D6 1/0
Data bus 6.
-·
.
3
.BGACK
I
Bus Grant Acknowledge. 23
'A,9
0
Address Bus 19.
62
DJ I/0
Data bus 3.
-··
4 BR I
Bus Request.
24
Azo 0
Address Bus 20.
63
Do
1/0
Data bus 0.
5
CLK I Clock.
25
A21
0
Address Bus 21.
64 UDS
0
Upper Data Strobe.
6 HALT
1/0
Halt. 26
An
0
Address Bus 22.
65
R/W 0
Read/Write.
7
VMA
0
Valid Memory Address. 27
D,s
'I/O
Data bus 15.
66
IPL,
I Interrupt Priority Level 1.
8
E
0
Enable.
28
D,z
1/0
Data bus 12.
67 A,J
0 Address Bus 13.
9 BERR I Bus Error.
29
DIO 1/0
Data bus 10.
68
DIJ I/0
Data Bus 13.
f--
10
N/C
-
N/C 30
Da
1/0
Data bus 8.
f-
II
FC2 0
Function Code Output 2.
31
D,
1/0
Data bus 7.
f-·
12
FC,
0
Function Code Output 0.
32
Ds
1/0
Data bus 5.
13
A,
0
Address Bus I. 33
D~
1/0
Data bus 4.
14
AJ
0 Address Bus 3.
34
Dz
1/0
Data bus 2.
15
A,
0
Address Bus 4. 35
D,
1/0
Data bus l.
16
A6
0
Address Bus 6.
36
AS 0
Address Strobe.
f-·
17
A,
0
Address Bus 7.
37
LDS 0
Lower Data Strobe.
18
A.
0
Address Bus 9.
38
BG
0 Bus Grant.
19
N/C
-
N/C
39
Vee
I Power Input.
20
A,,
0 Address Bus 14.
40
Vss
I GND.
6

Sega GENESIS II Specifications

General

Brand	Sega
Model	GENESIS II
Category	Game Console
Language	English