Overview
1.1 Operating Modes
The operating modes "stand-alone operation" and "software-controlled operation" are available.
They can be selected with the jumper as described in chapter '2.2 Jumper Settings'.
In all operating modes it is possible to communicate with the Hot-Swap-controller (e.g. measuring
current/voltage).
1.1.1 Stand-Alone Operation without PCIe Bus
The power supply voltage is fed by an external power supply unit, which is connected via
connector X3. The AMC-PCIe-Carrier switches the power supply voltage through to the AMC
board and ensures the corresponding Power-Sequencing.
The Hot-Swap functionality is exclusively executed by the hardware, the geographic address is set
to a value which is not used by IPMI.
The current consumption can be externally determined, and the AMC board can be programmed
via the local interfaces (e.g. serial-Debug..).
The SMBus interface (X6) allows communication via the I²C bus.
1.1.2 Stand-Alone Operation with PCIe Bus
In this operating mode communication with the AMC board can be done via PCIe.
The power supply voltage is supplied via the PCIe interface. As described in chapter 1.2.1 after
detecting an AMC board, the power supply voltage is supplied with short-circuit protection to the
AMC board. After detecting the reserved geographic address, the esd-AMC board starts up
autonomous, a communication via IPMI-IIC/SMBus is not required.
In case if the SMBus-lines of the PCIe-Slot are not supplied, a connection from connector X6 to an
SMBus-header and the mainboard is possible.
1.1.3 Factory-Test of an AMC Board
In this operating mode the Hot-Swap cycles are controlled by a PC software. Thus it is possible to
run systematic power-on and power-off sequences.
The power consumption of both supply lines and the input voltages can be measured.
Additionally the PC software can generate user-defined uTCA-Slot-IDs or start and stop the AMC
board.
The PC-SMBus is connected to the AMC-IPMI bus. Therefore standard IPMI commands can be
transmitted to the AMC board.
Note!
Depending on the I²C-Controller used in the PC, request of AMC-data may not work!
The esd-AMC boards handle this situation by an extended firmware.
AMC-PCIe-Carrier
Hardware Manual • Doc. No.: U.1003.21 / Rev. 1.1
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