Difference between revisions of "Integration guide (Dido)"
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== Topics shared with Naon SOM == | == Topics shared with Naon SOM == | ||
| − | Please refer to [[Integration_guide_(Naon)]] for all the topics that are in common with the Naon SOM | + | Please refer to [[Integration_guide_(Naon)]] for all the topics that are in common with the [[Naon_SOM | Naon SOM]] |
== Dido SOM specific topics == | == Dido SOM specific topics == | ||
=== PCI Express === | === PCI Express === | ||
| + | |||
| + | ==== PCB ==== | ||
| + | {| class="wikitable" border="1" | ||
| + | | align="center" style="background:#f0f0f0;"|'''Routed length for PCI Express Differential Pairs''' | ||
| + | | align="center" style="background:#f0f0f0;"|'''Min''' | ||
| + | | align="center" style="background:#f0f0f0;"|'''Typ''' | ||
| + | | align="center" style="background:#f0f0f0;"|'''Max''' | ||
| + | |- | ||
| + | | Differential Impedance [Ohm]||-||101||- | ||
| + | |- | ||
| + | | Common Mode Impedance [Ohm]||-||57||- | ||
| + | |- | ||
| + | | Intra pair matching [mils]*||-||-||5 | ||
| + | |- | ||
| + | | Max Length [in]||-||-||<5,5 | ||
| + | |- | ||
| + | | Stub||-||-||0 | ||
| + | |- | ||
| + | | Vias on module TX||-||-||3 | ||
| + | |- | ||
| + | | Vias on module RX||-||-||6 | ||
| + | |} | ||
| + | |||
| + | * * See detailed trace lengths shown in the following table. These numbers are required to compute overall (SoM + carrier board) lengths. | ||
| + | {| class="wikitable" border="1" | ||
| + | | align="center" style="background:#f0f0f0;"|'''Dido pin name''' | ||
| + | | align="center" style="background:#f0f0f0;"|'''Individual trace length [mils]''' | ||
| + | |- | ||
| + | | PCIE_TXP||align="center" |5234,14 | ||
| + | |- | ||
| + | | PCIE_TXN||align="center" |5234,14 | ||
| + | |- | ||
| + | | PCIE_RXP||align="center" |5174,11 | ||
| + | |- | ||
| + | | PCIE_RXN||align="center" |5169,96 | ||
| + | |} | ||
Latest revision as of 08:10, 18 July 2014
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Contents
IntroductionEdit
This page provides useful information and resources to system designers in order to integrate Dido module in his/her application quickly. These information complement SoM-independent recommendations provided in the Carrier board design guidelines (SOM) page.
Several topics are covered, ranging from hardware issues to manufacturing aspects.
Edit
Please refer to Integration_guide_(Naon) for all the topics that are in common with the Naon SOM
Dido SOM specific topicsEdit
PCI ExpressEdit
PCBEdit
| Routed length for PCI Express Differential Pairs | Min | Typ | Max |
| Differential Impedance [Ohm] | - | 101 | - |
| Common Mode Impedance [Ohm] | - | 57 | - |
| Intra pair matching [mils]* | - | - | 5 |
| Max Length [in] | - | - | <5,5 |
| Stub | - | - | 0 |
| Vias on module TX | - | - | 3 |
| Vias on module RX | - | - | 6 |
- * See detailed trace lengths shown in the following table. These numbers are required to compute overall (SoM + carrier board) lengths.
| Dido pin name | Individual trace length [mils] |
| PCIE_TXP | 5234,14 |
| PCIE_TXN | 5234,14 |
| PCIE_RXP | 5174,11 |
| PCIE_RXN | 5169,96 |