Advantech MIC-5602, Руководство пользователя

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MIC-5602 User Manual 12
2.2.8.7 Maintaining FRU Information
The FRU Data is maintained in the EEPROM memory of the ATmega128L AVR. The
structure complies with IPMI FRU Information Storage Definition. The basic structure
is shown below:
2.2.9 Chipset Watchdog Interface
A watchdog timer is provided to reset the MMC in the event that the chipset is unre-
sponsive. Being integrated into the SIW block of the Intel 3100, it appears as a logical
device on the LPC bus. The timer is pre-defined for 20 seconds. The 20-second tim-
eout will result in triggering a BMC watchdog.
Known Limitation: At the time of the manual creation, this feature has not been
implemented in the MMC firmware.
2.2.10 RS-232 Ports
The Intel 3100 serial ports, UART 1 and UART 2, appear as logical devices 4 and 5
on the LPC bus, respectively. The UART 1 is routed to an USB-Serial converter. The
UART 2's RX and TX signals are routed to the MMC.
2.2.11 Clock Generator
One CK410M clock generator (ICS954201) driven with a 14.318 MHz (+/-30ppm)
crystal is used to generate the AMC Module clocks such as the clock frequency (i.e.
100 MHz) required by the processor, the FSB, the memory subsystem and the PCIe
ports. There are also other clock signals (i.e. 14.318 MHz, 33 MHz, and 48 MHz)
required by the Intel 3100. However, The 200 MHz clock for the DDR2 memory is
generated internally by the Intel 3100.
Table 2.4: FRU Structure
Common Header
The common header contains the offsets for each area within the
FRU data storage. It will be automatically generated by the FRU
compiler.
Internal Use Area
The internal use area is provided for storage of parameters of the
MIC-5602. It is used for the CMOS override function, the BIOS
image selection bit, the FWH write-protect bit, and the storage of
the GbE MAC addresses, etc.
Board Info Area
The board info area holds board relevant data, such as language
code, manufacturing date/time, manufacturer, product name, serial
number, part number, FRU programmer file ID, etc.
Product Info Area
The product info area holds product relevant data. It contains par-
tially identical data as the board info area.
Multi-record Area
The multi-record area contains several subsets. First, there are the
AMC.0 required entries for E-Keying and system power budgeting.
Next, there is a dummy 256 byte OEM area dedicated for use by
customers.