Intel Intel NetStructure Single Board Computer, MPCBL0010 manual Select Reference Clock

MPCBL0010 SBC—Telecom Clock

Table 128. Switchover Mode Values

Name	Description	Value
PLL_HOLDOVER	Use PLL holdover detection	0x40
LOST_CLOCK	Use loss of clock signal	0x00

12.4.6Select Reference Clock

To select the received reference clock from AdvancedMC for AdvancedTCA backplane CLK3B and CLK3A, use the following:

Functions:

IOCTL_SELECT_RECEIVED_REF_CLK3A

IOCTL_SELECT_RECEIVED_REF_CLK3B

Table 129. Received Reference Clock Values

Name	Description	Value
AMC_B1	Source from AdvancedMC B1	0x00
AMC_B2	Source from AdvancedMC B2	0x10

12.4.7Reference Frequency for PLL

To select the reference frequency that feeds the clocks to the PLL, use the following:

Function:

IOCTL_SELECT_REF_FREQUENCY

Table 130. Reference Frequency PLL Values

Name	Description	Value
REF_CLK1_8kHz	PLL input clocks = CLK1A and CLK1B	0x00
	(8 kHz, per AdvancedTCA specification)
REF_CLK2_19_44MHz	PLL input clocks = CLK2A and CLK2B	0x02
	(19.44 MHz, per AdvancedTCA specification)

12.4.8Primary/Secondary Redundant Clock

To select the primary or secondary redundant clock, use the following:

Function:

IOCTL_SELECT_REDUNDANT_CLOCK

Table 131. Primary/Secondary Redundant Clock Values

Name	Value
PRIMARY_CLOCK	0x00
SECONDARY_CLOCK	0x01

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