Kontron AM4901 IPMI - Manual (Page 22)

IPMI Firmware User Guide AM5901/AM4901
Page 22 ID: 1035-8760, Rev. 3.0
where:
denotes the slot for which the following parameters have to be set.
Please note that 'source slot' does not mean that here resides a
Fclock source.
defines the 'source slot's' assumed or desired Fclock behavior.
denotes the slot which's Fclock
connected to the . 0 means that there no change of the
point-to-point fclock connectivity data being defined for the back
plane is needed for this 'source slot'. If at least for one 'source slot'
the 'remote slot' is not 0 then the backplane's "Carrier Clock
Point-to-Point Connectivity Records" data during Fclock e-keying
will be logically replaced by the manually defined connections be-
tween 'source slots' and 'remote slots'. If all 'remote slots' are 0 then
the backplane's "Carrier Clock Point-to-Point Connectivity Records"
data will be used during Fclock e-keying. Please note that every
'source slot' must have a unique 'remote slot' if not 0.
If 'remote slot' is 0 then 'fclock strategy' denotes how the AMC in this slot shall be uncondition-
ally set up like this:
0 = Do not influence the AMC's Fclock behavior.
1x = The AMC's Fclock shall be receiver as defined in its xth match 0 descriptor.
2x = The AMC's Fclock shall be source as defined in its xth match 1 descriptor.
If 'remote slot' is 1… then 'fclock strategy' denotes the Fclock e-keying strategy of the MCH like
this:
1 = Use the Fclock parameters being specified in the FRU data of the AMC in 'source
slot'. Use the matching ones when connecting slots.
2 = Simulate that the AMC in 'source slot's' is a clock receiver. For this the 'remote slot'
AMC's first Fclock FRU data will be copied and set to receiver to force the AMC in 're-
mote slot' to become a Fclock source. The 'source slot' AMC's Fclock will not be
touched. Please note that for that the AMC module in the 'remote slot' must have fclock
FRU data.
3 = Simulate that the AMC in 'source slot's' is a clock source. For this the first 'remote slot'
AMC's first Fclock FRU data will be copied and set to source to force the AMC in 're-
mote slot' to become a Fclock receiver. The 'source slot' AMC's Fclock will not be
touched. Please note that for that the AMC module in the 'remote slot' must have fclock
FRU data.
3.6 Watchdog
The MCH’s processor provides an autonomous and continuously active Watchdog function. If
the MCH Firmware does not regularly trigger the Watchdog as a result of an internal malfunc-
tion, the Watchdog forces automatically a system reset thus preventing potentially dangerous
operations. This reset is an “unexpected” reset meaning it causes a complete new start of the
MCH comparable to a power on reset. As a result of this reset, all AMC modules are powered
down after which the system is powered up again according to the position of the Hot Swap
switches.