Figure 2-40. Daisy Chain Routing For Three-Dram Dimm Slots - VIA Technologies Apollo Pro133A Design Manual

Technologies, Inc.
We Connect We Connect
VT82C694X
(North Bridge)
MD[63:0]
MECC[7:0]
CASA[7,6,4:2,0]#
MAA[14:0]
SRASA#
SCASA#
CASA[5,1]#
MAB[14:0]#
SRASB#
SCASB#
CASB[5,1]#
RASA[1:0]#
RASB[1:0]#
RASA[3:2]#
RASB[3:2]#
RASA[5:4]#
RASB[5:4]#
RASA[7:6]#
RASB[7:6]#
Note: MAB[14:0]# represents MAB[14:11]#, MAB10 and MAB[9:0]#.
Note: Comparing to T-Style routings in Figure 2-41, the advantages of Daisy Chain Ordering routings are lower crosstalk
between traces, easier layout.
Preliminary Revision 0.5, November 19, 1999
2" < L1 < 3"
2" < L4 < 3.5"
SWEA#
2" < L5 < 4"
SWEB#
No Connet

Figure 2-40. Daisy Chain Routing for Three-DRAM DIMM Slots

Design Guide - VT82C694X Apollo Pro133 with VT82C686A
DIMM3
0.4" < L2 < 0.5"
(Group B)
48
DIMM2 DIMM1
0.4" < L3 < 0.5"
(Group A)
Motherboard Design Guidelines