Odt/Cke/Cs - Control Routing Topology For A Single Rank 4L Fly-By Design - Pcb Type; Control - Routing Guidelines And Settings For A Single Rank 4L Fly-By Design-Pcb Type - Intel Quark SoC X1000 Design Manual

DDR3 Memory Design Guidelines—Intel
Figure 18. ODT/CKE/CS - Control Routing Topology for a Single Rank 4L Fly-by Design -
PCB Type 3
SoC
Tx
Table 9. Control - Routing Guidelines and Settings for a Single Rank 4L Fly-by Design—
PCB Type 3 (Sheet 1 of 2)
Parameter
Transmission Line
Segment
Stackup Layer
(Microstrip / Stripline/
Dual Stripline)
Characteristic
Impedance (Control
Group)
Trace Width
Trace Spacing (S):
Within the signals in
the point-to-point
CTRL Group
Trace Spacing (S1):
Between CTRL Signals
and other DDR signals
Trace Spacing (S2):
Between CTRL group
and non-DDR signals -
excluding power pins
Point-to-point CTRL
group Trace Segment
Length
Point-to-point CTRL
group Total trace
length
June 2014
Order Number: 330258-002US
®
Quark™ SoC X1000
Package
Breakout Main
P1
TL1 TL2
via via
TL1 TL2 TL3
MS MS MS
50 Ω SE 10% (MS)
4.0 mils 4.2 mils 4.2 mils
min = min = min =
4.0 mils 8.4 mils 6.5 mils
min = min = min =
4.0 mils 13 mils 6.5 mils
min =
min = min =
10.0
20 mils 20 mils
mils
min = min =
1000 200
max =
mils mils
200
max = max =
mils
1700 400
mils mils
1st DRAM: TL1 + TL2 + TL3 + TL4 + TL10 = 3000 mils (max)
2nd DRAM: TL1 + TL2 + TL3 + TL4 + TL5 + TL6 +TL7 +TL10 = 3800 mils (max)
DRAM
Breakin
Breakout
Main Breakin Breakin
TL3 TL4 TL5 TL6
via
device-to-
-device
Routing Guideline / Setting
TL4 TL5 TL6
MS MS MS
4.2 mils 4.2 mils 4.2 mils
min = min = min =
4.2 mils 4.0 mils 4.2 mils
min = min = min =
4.2 mils 4.0 mils 6.5 mils
min =
min = min =
10.0
20 mils 20 mils
mils
min = min =
200 500
max =
mils mils
100
max = max =
mils
600 600
mils mils
DRAM
VTT
Breakin
Breakin Breakout
Termination
TL7 TL8 TL9
via
TL7 TL8 TL9
MS MS MS
4.2 mils 4.2 mils 4.2 mils
min = min = min =
4.0 mils 4.2 mils 4.2 mils
min = min = min =
4.0 mils 4.2 mils 4.2 mils
min = min =
min =
10.0 10.0
20 mils
mils mils
min =
300
max =
mils
max =
100
50 mils
max =
mils
700
mils
®
Intel Quark™ SoC X1000
RTT
TL10
MS
4.2 mils
min =
4.0 mils
min =
4.0 mils
min =
10.0
mils
max =
100
mils
PDG
33