SI5369 Datasheet, PDF (58/84 Pages) Silicon Laboratories – ANY-FREQUENCY PRECISION CLOCK MULTIPLIER/JITTER ATTENUATOR

Si5369
Register 128.
Bit D7 D6 D5 D4
D3
D2
D1
D0
Name
CK4_ACTV_REG CK3_ACTV_REG CK2_ACTV_REG CK1_ACTV_REG
Type R R R R
R
R
R
R
Reset value = 0010 0000
Bit
Name
Function
7:4
Reserved
3 CK4_ACTV_REG CK4_ACTV_REG.
Indicates if CKIN4 is currently the active clock for the PLL input.
0: CKIN4 is not the active input clock. Either it is not selected or LOS4_INT is 1.
1: CKIN_4 is the active input clock.
2 CK3_ACTV_REG CK3_ACTV_REG.
Indicates if CKIN3 is currently the active clock for the PLL input.
0: CKIN3 is not the active input clock - either it is not selected or LOS3_INT is 1.
1: CKIN3 is the active input clock.
1 CK2_ACTV_REG CK2_ACTV_REG.
Indicates if CKIN2 is currently the active clock for the PLL input.
0: CKIN2 is not the active input clock. Either it is not selected or LOS2_INT is 1.
1: CKIN2 is the active input clock.
0 CK1_ACTV_REG CK1_ACTV_REG.
Indicates if CKIN1 is currently the active clock for the PLL input.
0: CKIN1 is not the active input clock. Either it is not selected or LOS1_INT is 1.
1: CKIN1 is the active input clock.
58
Rev. 1.0