Preface AM5020
Page vi ID 1043-6198, Rev. 1.0
P R E L I M I N A R Y
4.3.17 MMC AMC E-Keying Configuration Register 1 (IAKEY1) .............4 - 19
4.3.18 MMC Controller Status Register 0 (ICSTA0) .................................4 - 20
4.3.19 MMC Controller Status Register 1 (ICSTA1) .................................4 - 21
4.3.20 MMC Reset Status Register (IRSTA) ............................................4 - 22
4.3.21 IPMI Keyboard Controller Style Interface ......................................4 - 22
5. Power Considerations .............................................................5 - 3
5.1 AM5020 Voltage Ranges .........................................................................5 - 3
5.2 Carrier Power Requirements ...................................................................5 - 3
5.2.1 Payload Power ................................................................................5 - 3
5.2.2 Payload and MMC Voltage Ramp ...................................................5 - 4
5.2.3 Module Management Power Consumption .....................................5 - 4
5.3 Payload Power Consumption of the AM5020 ..........................................5 - 5
5.4 Payload Power Consumption of AM5020 Accessories ............................5 - 6
5.5 IPMI FRU Payload Power Consumption ..................................................5 - 6
5.6 Payload Start-Up Current of the AM5020 ................................................5 - 7
6. Thermal Considerations .........................................................6 - 3
6.1 Board Thermal Monitoring .......................................................................6 - 3
6.2 Processor Thermal Monitoring .................................................................6 - 3
6.2.1 Digital Thermal Sensor (DTS) .........................................................6 - 3
6.2.2 Adaptive Thermal Monitor ...............................................................6 - 4
6.2.3 Frequency/VID Control ...................................................................6 - 4
6.2.4 Clock Modulation .............................................................................6 - 5
6.2.5 Catastrophic Cooling Failure Sensor ..............................................6 - 5
6.3 Chipset Thermal Monitor Feature ............................................................6 - 5
6.4 System Airflow .........................................................................................6 - 6
6.4.1 Thermal Characteristic Diagrams for the AM5020 ..........................6 - 8
6.4.2 Airflow Impedance ...........................................................................6 - 9
6.4.3 Airflow Paths .................................................................................6 - 10
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