ADC JESD Register Map
397
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
2.5.37 Register 4Bh (offset = 4Bh) [reset = 0h]
Figure 2-533. Register 4Bh
7
6
5
4
3
2
1
0
0
0
0
DDC_RD_CLK_FB_DIV_N_M1
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 2-538. Register 4B Field Descriptions
Bit
Field
Type
Reset
Description
7-5
0
R/W
0h
Must read or write 0
4-0
DDC_RD_CLK_FB
_DIV_N_M1
R/W
0h
N-1 value of ddc divider.
Output of this divider, clock frequency should match the
FBAB/FBCD interface rate
2.5.38 Register 4Ch (offset = 4Ch) [reset = 1h]
Figure 2-534. Register 4Ch
7
6
5
4
3
2
1
0
0
0
0
JESD_CLK_RX1_DIV_M
R/W-0h
R/W-0h
R/W-0h
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-539. Register 4C Field Descriptions
Bit
Field
Type
Reset
Description
7-5
0
R/W
0h
Must read or write 0
4-0
JESD_CLK_RX1_
DIV_M
R/W
1h
M value of jesd divider.
Output of this divider, clock frequency should match STX1/5
rate i.e. lane _rate/40 or lane_rate/33
2.5.39 Register 4Dh (offset = 4Dh) [reset = 0h]
Figure 2-535. Register 4Dh
7
6
5
4
3
2
1
0
0
0
0
JESD_CLK_RX1_DIV_N_M1
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 2-540. Register 4D Field Descriptions
Bit
Field
Type
Reset
Description
7-5
0
R/W
0h
Must read or write 0
4-0
JESD_CLK_RX1_
DIV_N_M1
R/W
0h
N-1 value of jesd divider.
Output of this divider, clock frequency should match STX1/5
rate i.e. lane _rate/40 or lane_rate/33