Due to match old platform, some net name have not been changed and not match their
function, like below:
“CPU_JTAG_RST” is used to announce MB that BMC want to light the ID led.
“MAC_INT_L” is used to announce MB that BMC want to light off the DIAG led.
“USB1_VBUS” is used for the “power on reset” request from BMC.
“USB1_PWRFAULT” is used for the “all power off” request from BMC
“USD9090_ALERT_L” is the announcement from MB that the front panel ID button has been
pushed. The CPLD has to announce BMC by “BMC_ID_BTN”.
3.13.5. Interrupt
The interrupt block in CPLD is used to record the interrupt event that came from CPU and MB
then announce the interrupt event to BMC.
Also, when the BMC announces the interrupt event by “BMC_NMI_BTN” or some system
events, CPLD would announced CPU by “BDX_CPLD_INT_CPU”.
Figure 26 CPLD Interrupt Diagram
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