Motorola MVME2600 manual Dram Mezzanine Connector J7, Aras ∗ Acas ∗

4

Connector Pin Assignments

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.

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

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