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參數(shù)資料
| 型號(hào)： | BR1570 |
| 英文描述： | WarpLink Reference Design Platform |
| 中文描述： | WarpLink參考設(shè)計(jì)平臺(tái) |
| 文件頁(yè)數(shù)： | 8/24頁(yè) |
| 文件大?。?/td> | 492K |
| 代理商： | BR1570 |
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WarpLink Reference Design Platform
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For More Information On This Product,
Go to: www.freescale.com
Figure 4. WarpLink Reference Backplane (Front View)
The backplane not only connects the eight slots of the Motorola WarpLink system; it also has been designed with features that help exhibit
its gigabit transmission capabilities. The longest gigabit traces required to connect slots 1 to 8 are about 12 to 15 inches. The WarpLink
backplane also contains four differential nets that are approximately 0.5 meter long. These nets demonstrate WarpLink’s ability to operate
over a long lossy channel. They are also used to test WarpLink’s compliance to XAUI specifications. The backplane also contains four
traces designed to inject crosstalk onto gigabit links. This serves to demonstrate WarpLink’s noise tolerance. These noise-generating nets
have been placed 5 and 10 mils away from the victim gigabit nets. A recommended design rule spacing of 15 mils (minimum) was
implemented for the remaining gigabit nets in order to minimize any crosstalk.
The gigabit links are confined to the middle of the backplane and are connected to the daughter cards through the ERNI Components
ERmet ZD High-Speed Backplane Connector. The slow-speed (single-ended) buses are positioned in the lower connector section of the
backplane and are connected to the daughter cards via ERNI Components ERmet 2 mm Hard Metric (HM) connectors. The clock nets run
across the upper connector section of the backplane and are connected to the daughter cards via with the ERNI 2 mm HM connectors as
well. The backplane provides 3.3V and 5V power to the daughter cards by way of the ERmet power modules at the top of each slot.
S8_J1
S
S
S
S8_J5
S
S
S
S
S
S
S1_J1
S
S
S
S6_J2
S5_J2
S4_J2
S3_J2
S2_J2
S1_J2
S7_J5
S6_J3
S5_J3
S4_J3
S3_J3
S2_J3
S1_J3
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
S8_J6/J7
S7_J6/J7
S6_J4/J5
S5_J4/J5
S4_J4/J5
S3_J4/J5
S2_J4/J5
S1_J4/J5
GND
GND
GND
J4
J5
J6
J3
J2
J1
+5 V
+3.3 V
+3.3 V
DC-DC converter
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
Guide pin
ZD
ZD
ZD
ZD
ZD
ZD
ZD
ZD
2
2mm
HM
2mm HM
2mm HM
2mm HM
2mm HM
2mm HM
2mm HM
2mm
HM
Power
Module
2
2
2
2
2
2
2
F
Freescale Semiconductor, Inc.
n
.
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