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TDP158 Datasheet(PDF) 37 Page - Texas Instruments

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Part No. TDP158
Description  6-Gbps, AC-Coupled to TMDS or HDMI Redriver
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Maker  TI1 [Texas Instruments]
Homepage  http://www.ti.com
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TDP158 Datasheet(HTML) 37 Page - Texas Instruments

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TDP158
www.ti.com
SLLSEX2 – DECEMBER 2016
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Copyright © 2016, Texas Instruments Incorporated
8.5.12 CSR BIT FIELD DIFINITIONS, DP-Mode and INDIVIDUAL LANE CONTROL (address = 31h)
See Section DP-Mode Description and Lane Control Note: DP-Mode is valid only when DP-Mode Register
P0_Reg09[5] is set to one
Figure 36. DP-Mode and INDIVIDUAL LANE CONTROL
7
6
5
4
3
2
1
0
VOD Swing Adjust for CLK Lane
Pre-emphasis Adjust for CLK
Lane
Reserved
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 19. DP-Mode and INDIVIDUAL LANE CONTROL Field Descriptions
Bit
Field
Type
Reset
Description
7:5
VOD Swing Adjust for CLK Lane
R/W
3’b000
000 – Vsadj set (default)
001 – Increase by 7%
010 – Increase by 14%
011 – Increase by 21%
100 – Decrease by 30%
101 – Decrease by 21%
110 – Decrease by 14%
111 – Decrease by 7%
Note: reg09h[6] = 1 otherwise all lanes are global control.
4:3
Pre-emphasis Adjust for CLK Lane
R/W
2’b00
00 – No Pre-emphasis (default)
01 – 3.5 dB Pre-emphasis.
10 – 6 dB Pre-emphasis
11 – Reserved
Note 1. reg09h[6] = 1 otherwise all lanes are global control.
Note 2. If in HDMI mode writes will be ignored and reg09h[7]
SWAP = 0. No pre-emphasis on clock.
2:0
Reserved
R/W
3’b000
Reserved
8.5.13 CSR BIT FIELD DIFINITIONS, DP-Mode and INDIVIDUAL LANE CONTROL (address = 32h)
See Section DP-Mode Description and Lane Control Note: DP-Mode is valid only when DP-Mode Register
P0_Reg09[5] is set to one
Figure 37. DP-Mode and INDIVIDUAL LANE CONTROL
7
6
5
4
3
2
1
0
VOD Swing Adjust for D0 Lane
Pre-emphasis Adjust for D0 Lane
Reserved
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 20. DP-Mode and INDIVIDUAL LANE CONTROL Field Descriptions
Bit
Field
Type
Reset
Description
7:5
VOD Swing Adjust for D0 Lane
R/W
3’b000
000 – Vsadj set (default)
001 – Increase by 7%
010 – Increase by 14%
011 – Increase by 21%
100 – Decrease by 30%
101 – Decrease by 21%
110 – Decrease by 14%
11 – Decrease by 7%
Note: reg09h[6] = 1 otherwise all lanes are global control.
4:3
Pre-emphasis Adjust for D0 Lane
R/W
2’b00
00 – No Pre-emphasis (default)
01 – 3.5 dB Pre-emphasis.
10 – 6 dB Pre-emphasis
11 – Reserved
Note: reg09h[6] = 1 otherwise all lanes are global control.
2:0
Reserved
R/W
3’b000
Reserved


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