Ide Interface; Cnr; Intel ® Ac'97 - Intel Pentium 4 Design Manual

Layout Review Checklist
16.6

IDE Interface

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16.7

CNR

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16.8 Intel
√
286
Recommendations
• 5 mil wide and 7 mil spaces
• Max trace length is 8 inches long
• Shortest trace length must be 0.5 inches
shorter than the longest trace length.
Recommendations
• 4.5 inches min to 8.5 inches max trace
length for LAN* Connect signals
• 60 Ω ±15%
• Maximum mismatch between length of clock
trace and length of any data trace is
0.5 inches
AC'97
Recommendations
• Z AC97 = 60 Ω + 15%
O
• 5 mil trace width, 5 mil spacing between
traces
• Max Trace Length
ICH2/Codec/CNR = 12 inches
® ®
Intel Pentium 4 Processor / Intel
Reason/Impact
• Refer to Section 9.1.
• Refer to Section 9.1.
• Refer to Section 9.1.
Reason/Impact
• Refer to Section 9.2.
• Refer to Section 9.2.
• Refer to Section 9.2.
Reason/Impact
• Refer to Section 9.3.
• Refer to Section 9.3.
• Refer to Section 9.3.
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850 Chipset Family Platform Design Guide
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