Information

PCI Express Interface Controller
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
14-122 Freescale Semiconductor
Table 14-140 lists the messages and the actions that take place in EP mode.
14.6.2 Interrupts
Message signaled interrupt (MSI) generation and handling are supported; however there are subtle
differences depending on whether the device is configured as an RC or EP device.
Table 14-140. PCI Express EP Inbound Message Handling
Name Code[7:0] Routing[2:0] Action
Assert_INTA 0010 0000 100 No action taken
Assert_INTB 0010 0001 100 No action taken
Assert_INTC 0010 0010 100 No action taken
Assert_INTD 0010 0011 100 No action taken
Deassert_INTA 0010 0100 100 No action taken
Deassert_INTB 0010 0101 100 No action taken
Deassert_INTC 0010 0110 100 No action taken
Deassert_INTD 0010 0111 100 No action taken
PM_Active_State_Nak 0001 0100 100 No action taken
PM_PME 0001 1000 000 No action taken
PME_Turn_Off 0001 1001 011 1. Log in PME and message detect register if enabled. Send
interrupt if enabled.
PM_TO_Ack 0001 1011 101 No action taken
ERR_COR 0011 0000 000 No action taken
ERR_NONFATAL 0011 0001 000 No action taken
ERR_FATAL 0011 0011 000 No action taken
Unlock 0000 0000 000 No action taken
Set_Slot_Power_Limit 0101 0000 100 No action taken
Vendor_Defined Type 0 0111 1110 — No action taken
Vendor_Defined Type 1 0111 1111 — No action taken
Attention_Indicator_On 0100 0001 100 No action taken
Attention_Indicator_Blink 0100 0011 100 No action taken
Attention_Indicator_Off 0100 0000 100 No action taken
Power_Indicator_On 0100 0101 100 No action taken
Power_Indicator_Blink 0100 0111 100 No action taken
Power_Indicator_Off 0100 0100 100 No action taken
Attention_Button_Pressed 0100 1000 100 No action taken