Kontron AT8904 - Manual (Page 56)

AT8904M Hardware Description
Page 3 - 22 AT8904M User Guide
3.2 Fabric Mezzanine
This section describes the board specific items of the fabric mezzanine module.
The mezzanine is a PICMG 3.1 compliant module for the AT8904M AdvancedTCA Hub Board
from Kontron. It provides a fabric interface switch with twenty 10GbE ports.
The mezzanine module is supplied by the 3V3 management power and the 12V payload po-
wer. The module is controlled by the IPM controller via an I2C interface. The interface is con-
nected to the JTAG chain for boundary scan test ability.
The board is compatible to the following standards:
• PICMG 3.0 AdvancedTCA Base Specification, Revision 2.0
• PICMG 3.1 Ethernet/Fibre Channel for AdvancedTCA Systems, Revision 1.0
• IPMI v1.5. Intelligent Platform Management Interface Specification
The main building blocks of the fabric mezzanine are:
• Fabric Switch
• IPMI
• Power Supply
3.2.1 Fabric Switch
The fabric switch is a Broadcom BCM56800 20 port 10 GbE multilayer switch. It integrates ad-
vanced Layer 3 switching features for IPv4 and IPv6 routing and includes enhanced QoS sup-
port and jumbo packet line rate switching.
The PPC controls the switch over a 32bit/66MHz PCI Interface.
Fabric Interface (Zone 2)
The Fabric Interface is comprised of 15 channels providing connectivity among up to 16 boards
in a Full Mesh or Star configuration. The Fabric Interface can be used in a variety of ways by
Boards and Backplanes to meet the needs of many applications defined by the PICMG 3.0 Re-
vision 2.0 standard. The pin assignment for the Zone 2 connectors is compliant to the PICMG
3.0 standard.