Publication No. HRMCP9 Rev. B
Function Blocks 59
7.17 Additional Devices
7.17.1
Hot Swap
The PICMG 2.1 Hot Swap compliant CR9 allows the orderly insertion and extraction
under power, without adversely affecting system operation. According to the
PICMG 2.1 Hot Swap specification, the CR9 uses its 2.7 k pull-up resistors for biasing
purposes during hot insert. During this phase, all CPCI signals are pre-charged to
1.1 V with these 2.7 k resistors.
The Hot Swap process can be described in terms of three processes:
Physical Connection Process - describes the acts of:
•
Hot Insertion - by which CR9 is installed in a live system (as a non-system CPU)
•
Hot Extraction – which means the CR9 is removed from a live system (as a non-
system CPU)
•
Hardware Connection Process - Power Up/Down of the CR9 onboard voltages
•
Software Connection Process - Connection/disconnection of the software layer(s)
At the end of the Physical Connection Process (the shortest Pin has connection) the
Hot Swap controller powers up the onboard voltages in a defined manner.
After the handle switches are closed, the CPCI bridge generates an insertion event,
which signals a Hot Swap insertion to the system. The system then scans the CPCI-
bus for changes.
NOTE
The CPCI backplane must support this function and appropriate software must be installed for Hot Swap to
work properly.
Содержание CR9 Series
Страница 24: ...24 CP9 CR9 CT9 Celeron M Pentium M Publication No HRMCP9 Rev B Figure 2 2 Handling the CR9 Board ...
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Страница 90: ...90 CP9 CR9 CT9 Celeron M Pentium M Publication No HRMCP9 Rev B Figure B 1 Mount PMC Board to CR9 ...
