Register 0X19 Device_Standby; Register 0X1A Reference_Clock - SIGNALCORE SC5312A User Manual

22 SC5312A & SC5313A Hardware Manual

Register 0x19 DEVICE_STANDBY

This register sets either the entire device or sections of the device into standby mode. Placing a section
into standby involves powering down its circuitry. This conserves power and eliminates unwanted LO
signals when they are not used.
Bytes written 2
Bytes read 1
Bits Type Name
[0] W State
[3:1] W Section
[7:4] W Unused
[7:0] R Read back byte

Register 0x1A REFERENCE_CLOCK

This register configures the reference clock behavior.
Bytes written 2
Bytes read 1
Bits Type Name
[0] W LockEnable
[1] W RefOutEnable
[2] W Clk10Enable
[3] W PXI10Enable
Rev 2.1 | SC5312A & SC5313A
Width Description
0 = Active
1
1 = Standby enabled
0 = Entire device
1 = LO1
3 2 = LO2
3 = LO3
4 = Signalchain
4
Set to zeros
8 Read 1 byte back is required for PXIe and RS232
Width Description
0 = Uses internal 10 MHz TCXO
1
1 = Enables frequency locking to external 10 MHz
reference source
1
Reference out port enabled
0 = 10 MHz output
1
1 = 100 MHz output
Only on SC5307A to enable export of the 10 MHz
1
backplane clock
User Manual SignalCore, Inc.