SERDES Register Map
512
SBAU337 – May 2020
Copyright © 2020, Texas Instruments Incorporated
Serial Interface Register Maps
Table 2-864. Register 49F6 Field Descriptions
Bit
Field
Type
Reset
Description
1-1
REFCLK_SRC_SE
L
R/W
0h
Reference clock path control:
0h: Reference clock from ckip pin
1h: Reference clock from internal clock
2.6.145 Register 49F8h (offset = 49F8h) [reset = 2h]
Figure 2-859. Register 49F8h
7
6
5
4
3
2
1
0
RX_PLL_VCO_
RANGE_MSB
R/W-1h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-865. Register 49F8 Field Descriptions
Bit
Field
Type
Reset
Description
1-1
RX_PLL_VCO_RA
NGE_MSB
R/W
1h
For PLL VCO range settings, see Register PzFDh: RX PLL
VCO RANGE LSB.
2.6.146 Register 49FAh (offset = 49FAh) [reset = 48h]
Figure 2-860. Register 49FAh
7
6
5
4
3
2
1
0
VRVDD_RX
VRVDD2_RX
R/W-4h
R/W-4h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-866. Register 49FA Field Descriptions
Bit
Field
Type
Reset
Description
6-4
VRVDD_RX
R/W
4h
3-1
VRVDD2_RX
R/W
4h
2.6.147 Register 49FBh (offset = 49FBh) [reset = 60h]
Figure 2-861. Register 49FBh
7
6
5
4
3
2
1
0
RX_PLL_VCO_RANGE_LSB
R/W-3h
LEGEND: R/W = Read/Write; W = Write only; -n = value after reset
Table 2-867. Register 49FB Field Descriptions
Bit
Field
Type
Reset
Description
7-5
RX_PLL_VCO_RA
NGE_LSB
R/W
3h
PLL VCO range settings:
0h: 27Gbps < NRZ rate < 32Gbps
1h: 25Gbps < NRZ rate < 30Gbps
2h: 24Gbps < NRZ rate < 28Gbps
3h: 23Gbps < NRZ rate < 26Gbps
4h: 22Gbps < NRZ rate < 24Gbps
5h: 21Gbps < NRZ rate < 23Gbps
6h: 20Gbps < NRZ rate < 22Gbps
7h: 19Gbps < NRZ rate < 21Gbps