SI5374 Datasheet, PDF (54/69 Pages) Silicon Laboratories – 4-PLL ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR

Si5374
Register 139.
Bit
D7
D6
D5
D4
D3
Name
LOS2_EN [0:0] LOS1_EN [0:0]
Type
R
R
R/W
R/W
R
Reset value = 1111 1111
D2
D1
D0
FOS2_EN FOS1_EN
R
R/W
R/W
Bit
Name
Function
7:6
Reserved
5 LOS2_EN [1:0] Enable CKIN2 LOS Monitoring on the Specified Input (2 of 2).
LSB
Note: LOS2_EN is split between two registers.
00: Disable LOS monitoring.
01: Reserved.
10: Enable LOSA monitoring.
11: Enable LOS monitoring.
LOSA is a slower and less sensitive version of LOS. See the family reference manual
for details.
4 LOS_EN [1:0] Enable CKIN1 LOS Monitoring on the Specified Input (1 of 2).
LSB
Note: LOS1_EN is split between two registers.
00: Disable LOS monitoring.
01: Reserved.
10: Enable LOSA monitoring.
11: Enable LOS monitoring.
LOSA is a slower and less sensitive version of LOS. See the family reference manual
for details.
3:2
Reserved
1
FOS2_EN Enables FOS on a Per Channel Basis.
0: Disable FOS monitoring.
1: Enable FOS monitoring.
0
FOS1_EN Enables FOS on a Per Channel Basis.
0: Disable FOS monitoring.
1: Enable FOS monitoring.
54
Rev. 1.1