Functional Description
35
AM4904 User Guide
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2.7.1 Fabric Interface
The MicroTCA™ backplane provides optional Fabric connectivity to each of the supported AMCs and between
the MCHs on Tongue 1 (Fabric [A]) and Tongues 3 and 4 (Fabric [DEFG]).
The AM4904-Base provides support for Fabric [A], GbE for 12 AMC ports and the MCH interlink.
Equipped with additional sRIO and PCIe fabric boards the product provides support for Fabric [DEFG] for 12
AMCs and the MCH interlink.
2.7.2 IPMB-L Interface
The IPMB-L interface of the AM4904 serves 12 discrete interfaces to tongue 1. These interfaces provide the
E-Keying information as well as all other management information between the MCH and the AMCs. On the
MCH, all 12 AMC interfaces are combined via a switch matrix to one interface, which is presented to the
MCMC.
2.7.3 IPMB-0 Interface
The IPMB-0 interface, consisting of the IPMB-0 [A] and the IPMB-0 [B] interfaces, is used for the communi-
cation between the MCH and the power modules as well as between the MCH and the cooling units in a
MicroTCA™ system to control the power served to the dedicated AMCs as well as the system cooling state.
2.7.4 MCH Update Channel Interface
The MCH update channel on the AM4904 is realized as a SerDes interface to the on-board Ethernet switch.
Thus, two MCHs can be interconnected across the MicroTCA backplane.
2.7.5 JTAG Interface
JTAG support is provided on the MCH Card-edge connector. The JTAG interface is used for vendor product test
and logic update.
On the AM4904, the PLD JTAG port is connected to the debug JTAG connector.
2.7.6 Pinout of MCH Card-edge Connectors
The MCH Card-edge connectors are a high-speed serial interface with 170 pins. The following table provides
the pinout of the MCH Card-edge connectors.
Table 2-24: MCH Card-edge Tongue 1 Connectors Pinout
Pin
No.
Signal
Driven By
Mat-
ing
Pin Function
on MCH
Pin
No.
Signal
Driven
By
Mating
Pin Function on
MCH
85
GND
First
Logic-Ground
86
GND
First
Logic-Ground
84
PWR
PM
First
Payload-Power
87
IPMBL-SDA-12
IPMI-Agent Third
IPMB-L to AMC12
83
PS0#
BkPLane
(GND)
Last
MCH Presence
88
IPMBL-SCL-12
IPMI-Agent Third
IPMB-L to AMC12
82
GND
First
Logic-Ground
89
GND
First
Logic-Ground
81
XOVER2-
Other-MCH
Third
Cross-
over_Interface2-
90
IPMBL-SDA-11
IPMI-Agent Third
IPMB-L to AMC11
Содержание AM4904
Страница 19: ...1KTC5520 EATX Chapter 1 Introduction www kontron com...
Страница 24: ...6KTC5520 EATX Chapter 2 Functional Description www kontron com...
Страница 65: ...47KTC5520 EATX Chapter 3 Operating the Unit www kontron com...
Страница 104: ...85KTC5520 EATX Chapter 4 Hardware Installation www kontron com...
Страница 109: ...90KTC5520 EATX Chapter 5 Power Considerations www kontron com...
Страница 113: ...Chapter 6 Thermal Considerations www kontron com...
Страница 121: ...1 Appendix A CM Configuration Options www kontron com...
Страница 128: ...1 Appendix B Getting Help www kontron com...
Страница 131: ...1KTC5520 EATX Appendix C Glossary www kontron com...