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DS320PR810NJXT Datasheet(PDF) 20 Page - Texas Instruments

Part # DS320PR810NJXT
Description  DS320PR810 Eight-Channel Linear Redriver for PCIe 5.0, CXL 1.1
PDF  38 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DS320PR810NJXT Datasheet(HTML) 20 Page - Texas Instruments

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Table 7-11. EQ Gain Control Register (Channel register base + Offset = 0x01) (continued)
Bit
Field
Type
Reset
Description
6
eq_stage1_3
R/W
0x0
EQBoost stage 1 control
See Table 7-1 for details
5
eq_stage1_2
R/W
0x0
4
eq_stage1_1
R/W
0x0
3
eq_stage1_0
R/W
0x0
2
eq_stage2_2
R/W
0x0
EQ Boost stage 2 control
See Table 7-1 for details
1
eq_stage2_1
R/W
0x0
0
eq_stage2_0
R/W
0x0
Table 7-12. EQ Gain / Flat Gain Control Register (Channel register base + Offset = 0x03)
Bit
Field
Type
Reset
Description
7
RESERVED
R
0x0
Reserved
6
eq_profile_3
R/W
0x0
EQ mid-frequency boost profile
See Table 7-1 for details
5
eq_profile_2
R/W
0x0
4
eq_profile_1
R/W
0x0
3
eq_profile_0
R/W
0x0
2
flat_gain_2
R/W
0x1
Flat gain select:
See Table 7-2 for details
1
flat_gain_1
R/W
0x0
0
flat_gain_0
R/W
0x1
Table 7-13. RX Detect Control Register (Channel register base + Offset = 0x04)
Bit
Field
Type
Reset
Description
7-3
RESERVED
R
0x0
Reserved
2
mr_rx_det_man
R/W
0x0
Manual override of rx_detect_p/n decision:
0: rx detect state machine is enabled
1: rx detect state machine is overridden – always valid RX
termination detected
1
en_rx_det_count
R/W
0x0
Enable additional RX detect polling
0: Additional RX detect polling disabled
1: Additional RX detect polling enabled
0
sel_rx_det_count
R/W
0x0
Select number of valid RX detect polls – gated by
en_rx_det_count = 1
0: Device transmitters poll until 2 consecutive valid detections
1: Device transmitters poll until 3 consecutive valid detections
Table 7-14. PD Override Register (Channel register base + Offset = 0x05)
Bit
Field
Type
Reset
Description
7
device_en_override
R/W
0x0
Enable power down overrides thorugh SMBus/I2C
0: Manual override disabled
1: Manual override enabled
6-0
device_en
R/W
0x111111
Manual power down of redriver various blocks – gated by
device_en_override = 1
111111: All blocks are enabled
000000: All blocks are disabled
Table 7-15. Bias Register (Channel register base + Offset = 0x06)
Bit
Field
Type
Reset
Description
5-3
Bias current
R/W
0x100
Control bias current
Set 001 for best performance
DS320PR810
SNLS668 – AUGUST 2022
www.ti.com
20
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Copyright © 2022 Texas Instruments Incorporated
Product Folder Links: DS320PR810



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