Intel Intel NetStructure Single Board Computer, MPCBL0010 manual Read Alarm States, Read New Events

MPCBL0010 SBC—Telecom Clock

Table 134. Hardware Reset Values

Name	Description	Value
RESET_ON	Reset asserted	0x00
RESET_OFF	Reset deasserted	0x02

12.4.13Read Alarm States

To read alarms state of the telecom clock, use the following:

Function:

IOCTL_READ_ALARMS

Table 135. Alarm State Values

Bit	Description	Define Bit Mask
0–3	None	None
4	Unlock detected	UNLOCK_MASK
5	Hold over detected. HOLDOVER_MASK	Hold over detected. HOLDOVER_MASK
6	Loss of secondary reference clock detected	SEC_LOST_MASK
7	Loss of primary reference clock detected.	PRI_LOST_MASK

12.4.14Read New Events

To read all new events that occurred since the last read, use the following:

Function:

IOCTL_READ_EVENTS

Table 136. New Event Values

Bit	Description	Define Bit Mask
0	Loss of primary and secondary clocks	EVENT_LOST_CLOCKS
1	Primary clock is gone	EVENT_LOST_PRIMARY_CLOCK
2	Primary clock is back	EVENT_PRIMARY_CLOCK_BACK
3	Secondary clock is gone	EVENT_LOST_SECONDARY_CLOCK
4	Secondary clock is back	EVENT_SECONDARY_CLOCK_BACK
5	PLL in holdover	EVENT_PLL_HOLDOVER
6	Switchover to primary done	EVENT_SWITCHOVER_PRIMARY
7	Switchover to secondary done	EVENT_SWITCHOVER_SECONDARY
8	End of holdover condition	EVENT_END_HOLDOVER
9	PLL lost synchronization	EVENT_PLL_LOST_SYNC
10	PLL synchronized	EVENT_PLL_SYNC

Intel NetStructure® MPCBL0010 Single Board Computer
Technical Product Specification	October 2006
168	Order Number: 304120