SI514 Datasheet, PDF (24/36 Pages) Silicon Laboratories – ANY-FREQUENCY IC PROGRAMMABLE XO

Si514
Register 128.
Bit
Name
Type
Default
7
6
5
4
3
2
1
0
RST
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
Bit
Name
Function
7
RST
Global Reset.
Resets all register values to default values. Self-clearing.
6:0
Reserved
Register 132.
Bit
7
6
5
4
3
2
1
0
Name
OE
FCAL
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
1
0
Bit
Name
Function
7:3
Reserved
2
OE
Output Enable.
OE can stop in high, low or high impedance state.
1: Output driver enabled.
0: Output driver powered down. OE_STATE register determines output state when dis-
abled.
1
Reserved
0
FCAL
Initiates frequency calibration cycle. Necessary when making large frequency
changes. Frequency calibration cycle takes 10 msec maximum. To prevent intermedi-
ate frequencies on the output, set disable output using OE register. Self-clearing.
24
Rev. 1.0