LMH0318_15 Datasheet, PDF (29/57 Pages) Texas Instruments – LMH0318 3 Gbps HD/SD SDI Reclocker with Integrated Cable Driver

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LMH0318
SNLS508 – SEPTEMBER 2015
8.5.3 Receiver Registers
REGISTER NAME
EQ_Boost
SD_EQ
EQ_SD_CONFIG
BITS
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
Table 6. Receiver Registers
FIELD REGISTER
ADDRESS
Reg 0x03 Channel
DEFAULT
R/RW
0x80
eq_BST0[1]
1
RW
eq_BST0[0]
0
RW
eq_BST1[1]
0
RW
eq_BST1[0]
0
RW
eq_BST2[1]
0
RW
eq_BST2[0]
0
RW
eq_BST3[1]
0
RW
eq_BST3[0]
0
RW
Reg_0x0D Channel
0x00
Reserved
0
RW
Reserved
0
RW
Reserved
0
RW
Reserved
0
RW
Reserved
0
RW
Reserved
0
RW
Reserved
0
RW
Mr_auto_eq_en_bypass
0
RW
Reg 0x13 Channel
Reserved
sd_0_PD
sd_1_PD
Reserved
eq_PD_EQ
0x90
1
RW
0
RW
0
RW
1
RW
0
RW
Reserved
eq_en_bypass
Reserved
0
RW
0
RW
0
RW
DESCRIPTION
4 Stage EQ Boost Levels. Read-back
value going to CTLE in reg_0x52. Used
for setting EQ value when reg_0x2D[3] is
high
2 Bits control for stage 0 of the CTLE.
Adapts during CTLE adaptation
2 Bits control for stage 1 of the CTLE.
Adapts during CTLE adaptation
2 Bits control for stage 2 of the CTLE.
Adapts during CTLE adaptation
2 Bits control for stage 3 of the CTLE.
Adapts during CTLE adaptation
270 Mbps EQ Boost Setting
1: EQ Bypass for 270 Mbps
0: Use EQ Settings in reg0x03[7:0] for 270
Mbps
Note: If 0x13[1] mr_eq_en_bypass is set,
bypass would be set and auto-bypass has
no significance.
Channel EQ Bypass and Power Down
1: Power Down IN0 Signal Detect
0: IN0 Signal Detect normal operation
1: Power Down IN1 Signal Detect
0: IN1 Signal Detect normal operation
Controls the power-state of the selected
channel. The un-selected channel is
always powered-down
1: Powers down selected channel EQ
stage
0: Powers up EQ of the selected channel
1: Bypass stage 3 and 4 of CTLE
0: Enable Stage 3 and 4 of CTLE
Copyright © 2015, Texas Instruments Incorporated
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