Artesyn ATCA 7370 / ATCA 7370-S Installation and Use (January 2015) - Manual (Page 110)

Functional Description
ATCA-7370/ATCA-7370-S Installation and Use (6806800P54H) 110
The IPMC monitors the Port 80 POST codes generated by the payload CPU. The IPMC is
connected to various sensors on the blade that provide temperature sensor readings at all
major devices and voltage sensor readings of all major voltages. The IPMC monitors reset
events caused by devices like watchdog, IPMI command, and reset button.
The FRU information of the various modules including front board, RTM, and other modules
are read via IPMC and if necessary upgraded through the IPMC.
The IPMC features Serial Over LAN (SOL) for the payload CPU serial console. The SOL interface
is available via ATCA Base I/F. Specific IPMI commands activates SOL.
5.9 Serial Redirection
The CPU serial redirection reroutes the console input and output; that is the text output to the
text screen and input from the standard keyboard. Typically, the console is used by the BIOS
setup menus, BIOS initialization and boot routines, OS boot loaders and loaded OS.
The serial console of the payload CPU is available via SOL. In addition to the SOL capability, the
serial console is also available on the blade faceplate using a RJ45 connector with Cisco pin-out.
If a SOL session is established, only the output is available on the faceplate. Input is not possible
during this time via the faceplate. Alternatively to the CPU serial console, the IPMC serial
console is also available on the faceplate serial connector. It can be selected via specific IPMI
OEM command.
5.10 Real Time Clock
An external 32.768 kHz crystal sources the internal real time clock inside C604 chipset with a
frequency tolerance of 20 PPM. The RTC is fully DS1287, MC14618, PC87911 and Y2K
compliant and provides 256 bytes of backed up CMOS RAM (of which 14 bytes containing the
RTC time and date info and RTC configuration). The default power-down backup method uses
a Super CAP with a 1 Farad capacity.
5.11 Serial ATA
The Intel C604 chipset includes a six port serial ATA controller compliant to SATA 2.0
specification. All ports support data transfer rate of 3.0Gbps, and two ports (Port0 and
Port1)support SATA 3.0, 6.0Gbps.