Specifications

116 Intel
®
Atom™ processor CE4100 Ref# 420826
Platform Design Guide
Intel Confidential
8.7.1 UART0_RXD Signal Recommendation
Figure 8-22. UART0_RXD signal Topology
Table 8-13. UART0_RXD signal Topology
Traces Layer Min Length
Max
Length
Trace:
Width/Spacing
Spacing from other
signals
w_TL0
Breakout
0.1” 0.5” 4 mils >=4 mils
w_TL1+w_TL2
Micro strip
1” 15” 4 mils >=8 mils
Notes:
• All traces impedance required to be 55 Ω +/- 10%.
• Simulation data based on the Intel
®
Atom™ processor CE4100 IBIS model.
• All signals should be referenced to ground. Reference to unbroken power plane is also accepted.