Bottom Layer; Rsl Signal Layer Alternation - Intel VC820 - Desktop Board Motherboard Design Manual

Layout/Routing Guidelines
Figure 2-21. Section B
NOTES:
1. Refer to
2.6.2.5

RSL Signal Layer Alternation

RSL signals must alternate layers as they are routed through the channel. If a signal is routed on the
primary layer from the MCH to the first RIMM socket, it must be routed on the secondary layer
from the first RIMM to the second RIMM as shown in
on the secondary layer from the MCH to the first RIMM socket, it must be routed on the primary
layer from the first RIMM to the second RIMM as shown in
termination resistors can be routed on either layer from the last RIMM.
2-20
1

, Bottom Layer

Figure 2-17. Ground flood removed from picture for clarity
Figure 2-22 (signal B). If a signal is routed
Figure 2-22 (signal A). Signals to the
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Intel 820 Chipset Design Guide