Elton User Manual Rev 1.04
Page 40
The following table provides a summary of the PCI Express versions and their respective data transfer
specifications.
PCI Express
Version
Transfer rate
Gigatransfers
Per Second
Bandwidth
Per Lane
X16 Lane Slot
1.0
2.5 GT/s
4 Gbit/s (500 MB/s)
2 Gbit/s (250 MB/s)
32 Gbit/s (4 GB/s)
2.0
5 GT/s
4 Gbit/s (500 MB/s)
64 Gbit/s (8 GB/s)
PCIe/104 OneBank and PCI Express Connector
The PCI/104-Express OneBank is an extension of the existing PCI/104-Express/PCIe/104 standard
developed by the PC/104 Consortium. that implements four x1 PCIe lanes along with other expansion bus
functionalities in a high density, 52-pin connector for board-to-board stacking. It is a subset of the PCIe/104
3-bank bus, compatible with existing PCI/104-Express Type 1 and Type 2 modules.
The OneBank connector occupies the same slot as Bank 1 of the 3-Bank connector. Hence, OneBank
signals include the same four x1 PCI Express Links, two USB 2.0, ATX power and control signals: +5V
Standby, Power supply ON, Power Good, and Power: +3.3V, +5V (reduced current) as found on the first
bank of the standard PCIe/104 bus making them plug-in compatible.
This preserves the stackability and compatibility of PCI/104-Express and PCIe/104 modules along with the
new OneBank modules. By eliminating two of the banks, real estate on each side is extended. The speed
levels up to PCIe Gen 3 on the PCIe/104 bus, generate higher bandwidth for future developments.
The following image represents the front top and bottom view of connector A OneBank and connector B PCI
Bus.
Figure 11.8-1: OneBank and PCI 104 Connectors
