PLL Register Map
151
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.2.2 Register 3Fh (offset = 3Fh) [reset = 8h]
Figure 2-25. Register 3Fh
7
6
5
4
3
2
1
0
CTL_PFD_DEL
reserved
reserved
reserved
reserved
reserved
R/W-0h
R/W-0h
R/W-1h
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-27. Register 3F Field Descriptions
Bit
Field
Type
Reset
Description
7-5
CTL_PFD_DEL
R/W
0h
Phase Frequency detector UP/Down Pulse Width:
0 : 190 ps
1 : 100 ps
2 : 280 ps
3 : 360 ps
4-4
reserved
R/W
0h
3-3
reserved
R/W
1h
2-2
reserved
R/W
0h
1-1
reserved
R/W
0h
0-0
reserved
R/W
0h
2.2.3 Register 40h (offset = 40h) [reset = 0h]
Figure 2-26. Register 40h
7
6
5
4
3
2
1
0
CTL_CP_CURR
reserved
reserved
reserved
reserved
R/W-0h
R/W-0h
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-28. Register 40 Field Descriptions
Bit
Field
Type
Reset
Description
7-5
CTL_CP_CURR
R/W
0h
Charge pump current
0 : 250 uA
1 : 125 uA
2 : 500 uA
3 : 1000 uA
4 to 7 are invalid.
4-3
reserved
R/W
0h
2-2
reserved
R/W
0h
1-1
reserved
R/W
0h
0-0
reserved
R/W
0h
2.2.4 Register 41h (offset = 41h) [reset = 0h]
Figure 2-27. Register 41h
7
6
5
4
3
2
1
0
reserved
reserved
CTL_CP_BIAS
reserved
R/W-0h
R/W-0h
R/W-0h
R/W-0h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset