PME Service Timeout Delay Register @0x224

This register stores the timeout delay parameter for the service timeout mechanism associated with the generation of PM_PME messages. In the Endpoint mode, the Controller will re-transmit a PM_PME message after the expiration of this delay if the Root Complex did not clear the PME Status bit in the Power Management Control and Status Register. This register is not used when the Controller is configured as Root Complex.

Table 1. i_pme_service_timeout_delay_reg

Bits	SW	Name	Description	Reset
19:0	R/W	PME Service Timeout Delay [PSTD]	Specifies the timeout delay for retransmission of PM_PME messages. The value is in units of microseconds. The actual time elapsed has a +1 microseconds tolerance from the value programmed.	0x186A0
20	R/W	Disable PME message on PM Status [DPMOPS]	When this bit is set, Controller will not automatically send a PME message when the PM Status bit in PMCSR register is set.	0x0
31:21	R	Reserved [R21]	Reserved	0x0