6 programmable logic devices, The intel – Intel SE8500HW4 User Manual
Page 75
Intel® Server Board Set SE8500HW4
Electrical Specifications
Revision 1.0
Intel order number D22893-001
63
8.6 Programmable Logic Devices
The Intel
®
Server Board Set SE8500HW4 has three Programmable Logic Devices (PLDs) for
fundamental logic on the Mainboard, including power, reset, hot-plug, and miscellaneous
signaling. Due to the nature of these devices, they are not programmable by an end user.
Table 37. PLD Functions
PLD
Description
System PLD:
1
Processor detection logic
Power sequencing
Reset
Server management diagnostic LEDs
BMC PLD:
2
Thermal management
32kHz clock generation
PCI Express* Hot Plug
Clock debounce logic
Power safety monitoring
PLD-to-server management link
IMI hot plug PLD:
3
Support for Memory Board hot plug events
BMC_PLD_TMS
BMC_PLD_TCK
BMC_PLD_TDI
BMC_PLD_TDO
BMC
S
IO
CPLD_TMS
CPLD_TCK
CPLD_TDI
CPLD_TDO
STBY
8.2K
STBY
8.2K
PLD3
PLD2
PLD1
0
Figure 18. PLD Connections