
Si5040
Register 109. sqmLOLThresh
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
Type
Reserved
R/W
sqmLOLThresh[13:9]
R/W
Reset settings = 0000 0000
Bit
7:5
Name
Reserved
Function
Reserved. Should be written to 101b.
4:0
sqmLOLThresh[13:9] SQM LOL Threshold.
Bit [13:9] of sqmLOL Threshold setting; value is unsigned integer value.
RxLOL is asserted when jitter measure exceeds value in sqmLOLThresh[13:0]
and is deasserted when jitter measure is below the threshold. Refer to Section
5.8.1 for more information about this register.
Register 131. TxChipConfig2
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
Reserved
TxPdn
Type
R
R/W
R
R/W
Reset settings = 0010 0010
Bit
7
6:1
0
76
Name
Reserved
Reserved
TxPdn
Function
Read returns zero.
Do not change; must only write 010001 to these bits.
Transmitter Power Down.
0 = Normal operation.
1 = Transmitter powered down.
A hard recal must be performed to calibrate all circuits (TX hardRecal at Register 136, Bit
3) when the transmitter is returned to normal operation after a power down.
Rev. 1.3