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Common Switch Region: Ethernet Core Switch (optional)
10007175-02 KAT4000 User’s Manual
4-3
Figure 4-2: VSC7376 GbE Switch Block Diagram
Switch Configuration
The processor has a local bus connection to the Ethernet core switch and the fat pipe switch
module (reads and writes directly to the registers). On power-up, the configuration values
are read from flash and the chip is initialized.
To configure the switch, see the KAT4000 Quick Start Guide, #10008585-xx. For the no-CPU
KAT4000 Ethernet switch configuration, see Appendix A or the KAT4000 Quick Start Guide
for the No-CPU Carrier Board, #10008506-xx.
High-Speed Serial Data Path Configuration
The KAT4000 design implements several types of high-speed serial protocols: Gbe, sRIO,
and PCIe. Proper setup of the devices driving data onto and receiving data from the inter-
connecting transmission lines is important for optimal performance. Configurable device
parameters include drive strength, gain, impedance, equalization, and pre-emphasis. The
configuration of some serial paths has been set by Emerson and should not be changed. For
paths that go off the board (e.g., to AMC sites, the backplane), the user must be aware of
device register settings for devices at both ends of the transmission line and set them
appropriately to meet device specifications and achieve full bandwidth performance.
Port Block
Port Block
Frame Bus