Intel EP80579 Manual page 280

Table 97. Layout Checklist (Sheet 12 of 13)
Signal Name
EX_DATA[15:0]
EX_RD#
EX_WR#
EX_BE[1:0]#
EX_RDY[3:0]#
EX_PARITY[1:0]
EX_ALE
EX_BURST
EX_IOWAIT#
EX_RCOMPP
EX_RCOMPN
Synchronous Serial Port (SSP) Interface
SSP_SCLK
SSP_SFRM
SSP_TXD
SSP_RXD
SSP_EXTCLK
IEEE 1588 Hardware-Assist Interface
TS_TESTMODE_DAT
A
TS_PPS
ASMSSIG
AMMSSIG
TSYNC_RX_SNAP
®
Intel EP80579 Integrated Processor Product Line
Platform Design Guide
280
®
Intel EP80579 Integrated Processor Product Line—Layout Checklist
Trace Geometry and
Impedance
Zo = 50 Ω +/- 10%
Trace Width:
Brakeout Trace Width 4 mils
Microstrip: 5.5 mils
Stripline: 4.5 mils (L3/L8)
Airgap Spacing:
Brakeout spacing Min=4mils
Microstrip: 12 mils
Stripline: 10 mils
Ω
Zo = 50 +/- 10%
Trace Width:
Brakeout Trace Width 4 mils
Microstrip: 5.5 mils
Stripline: 4.5 mils (L3/L8)
Airgap Spacing:
Brakeout spacing Min=4mils
Microstrip: 12 mils
Stripline: 10 mils
Ω
Zo = 50 +/- 10%
Trace Width:
Brakeout Trace Width 4 mils
Microstrip: 5.5 mils
Stripline: 4.5 mils (L3/L8)
Airgap Spacing:
Brakeout spacing Min=4mils
Microstrip: 12 mils
Stripline: 10 mils
Zo = 50 Ω +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Ω
Zo = 50 +/- 10%
Length Requirements
Breakout: Max = 1 in.
Breakin: Max = 1 in.
Length: See
Control Star
LDC_Total = LCS_Total
+/-500mils, Not to
exceed 16 inch at 33 MHz
Breakout: Max = 1 in.
Breakin: Max = 1 in.
Length: See
Control Star
LDC_Total = LCS_Total
+/-500mils, Not to
exceed 16 inch at 33 MHz
Breakout: Max = 1 in.
Breakin: Max = 1 in.
See
Length:
Control Star
Not to exceed 16 inch at
33 MHz
Place the RCOMPP
Routing Length LT:
(compensation resistor) as close
Max = 0.5 in.
as possible to EP80579
Place the RCOMPN
Routing Length LT:
(compensation resistor) as close
Max = 0.5 in.
as possible to EP80579
Comments
Section 22.3.4, "Data and
Topology".
Section 22.3.4, "Data and
Topology".
Section 22.3.4, "Data and
Topology".
.
.
May 2010
Order Number: 320068-005US