Intel G1620T CM8063701448300 Manuale Utente

702

Datasheet

Events and interrupts that are handled by the root port are shown with the possible 
interrupts they can deliver to the interrupt decoder/router.

 lists the possible interrupts and events generated based on Packets received, 

or events generated in the root port. Configuration needed by software to enable the 
different interrupts as applicable.

When INTx interrupts are received by an end point, they are mapped to the following 
interrupts and sent to the interrupt decoder/router in the iLB:

Interrupts generated from events within the root port are not swizzled.

Express Card Hot Plug is available based on Presence Detection for each root port.

A full Hot Plug Controller is not implemented.

Presence detection occurs when a PCI Express* device is plugged in and power is 
supplied. The physical layer will detect the presence of the device, and the root port will 
set the SLSTS.PDS and SLSTS.PDC bits.

When a device is removed and detected by the physical layer, the root port will clear 
the SLSTS.PDS bit, and set the SLSTS.PDC bit.

Interrupts can be generated by the root port when a hot plug event occurs. A hot plug 
event is defined as the transition of the SLSTS.PDC bit from 0 to 1. Software can set 
the SLCTL.PDE and SLTCTL.HPE bits to allow hot plug events to generate an interrupt.

INTx

Packet

X

X

PM_PME

Packet

X

X

Power Management (PM)

Event

X

X

X

X

Hot Plug (HP)

Event

X

X

X

X

ERR_CORR

Packet

X

ERR_NONFATAL

Packet

X

ERR_FATAL

Packet

X

Internal Error

Event

X

VDM

Packet

X

Root Port 1

INTA#

INTB#

INTC#

INTD#

Root Port 2

INTD#

INTA#

INTB#

INTC#

Root Port 3

INTC#

INTD#

INTA#

INTB#

Root Port 4

INTB#

INTC#

INTD#

INTA#