Motorola MVME2600 用户手册
4-12
Computer Group Literature Center Web Site
Connector Pin Assignments
4
DRAM Mezzanine Connector J7
A 190-pin connector (J7 on the MVME2603/2604 base board) supplies the
interface between the processor bus (MPU bus) and the RAM200 DRAM
mezzanine. The pin assignments are listed in the following table.
interface between the processor bus (MPU bus) and the RAM200 DRAM
mezzanine. The pin assignments are listed in the following table.
Table 4-7. DRAM Mezzanine Connector
1
A_RAS
∗
A_CAS
∗
2
3
B_RAS
∗
B_CAS
∗
4
5
C_RAS
∗
C_CAS
∗
6
7
D_RAS
∗
D_CAS
∗
8
9
OEL
∗
OEU
∗
10
11
WEL
∗
WEU
∗
12
13
ROMACS
∗
ROMBCS
∗
14
15
RAMAEN
RAMBEN
16
17
RAMCEN
EN5VPWR
18
19
RAL0
GND
RAL1
20
21
RAL2
RAL3
22
23
RAL4
RAL5
24
25
RAL6
RAL7
26
27
RAL8
RAL9
28
29
RAL10
RAL11
30
31
RAL12
RAU0
32
33
RAU1
RAU2
34
35
RAU3
RAU4
36
37
RAU5
RAU6
38
39
RAU7
RAU8
40
41
RAU9
RAU10
42
43
RAU11
RAU12
44
45
RDL0
RDL1
46
47
RDL2
RDL3
48
49
RDL4
RDL5
50