DS100BR111A_15 Datasheet, PDF (31/51 Pages) Texas Instruments – Ultra Low Power 10.3 Gbps 1-Lane Repeaters with Input Equalization and Output De-Emphasis

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DS100BR111A
SNLS400D – JANUARY 2012 – REVISED JANUARY 2015
Register Maps (continued)
Table 9. SMBus Slave Mode Register Map (continued)
ADDRESS
0x0F
REGISTER
NAME
CH A
EQ Setting
BIT
7:0
FIELD
BOOST [7:0]
0x10
7
Sel_scp
CH A
6
Reserved
Control 1
5:3 Reserved
2:0 Reserved
7:5 Reserved
4:3 Reserved
0x11
CH A
Control 2
2:0 DEM [2:0]
7
Reserved
6:4 Reserved
0x12
CH A
3:2
IDLE Assert
Threshold[1:0]
Idle
Threshold
1:0
IDLE De-assert
Threshold[1:0]
0x13
0x14
CH B
Analog 7:0
Override 1
CH B
Reserved
7:0
7:6
Reserved
Reserved
Reserved
0x15
5
CH B
Idle Control
4
Idle Auto
Idle Select
0x16
0x17
3:2
1:0
CH B
EQ Setting
7:0
7
CH B
6
Control 1
5:3
2:0
Reserved
Reserved
BOOST [7:0]
Sel_scp
Reserved
Reserved
Reserved
TYPE
R/W
R/W
R
R/W
R/W
DEFAULT
0x2F
0xED
0x82
0x00
EEPROM
REG BIT
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
DESCRIPTION
EQ Boost Default to 24 dB
See Table 3 for Information
1 = Short Circuit Protection ON
0 = Short Circuit Protection OFF
Set bit to 1
Set bits to 101'b
Set bits to 101'b
Set bits to 100'b
Set bits to 0
De-Emphasis
000'b = -0.0 dB
001'b = -1.5 dB
010'b = -3.5 dB (Default)
011'b = -6.0 dB
100'b = -8.0 dB
101'b = -9.0 dB
110'b = -10.5 dB
111'b = -12.0 dB
Set bit to 0
Set bits to 0
Assert Thresholds
Use only if register 0x08 [6] = 1
00'b = 180 mVpp (Default)
01'b = 160 mVpp
10'b = 210 mVpp
11'b = 190 mVpp
De-assert Thresholds
Use only if register 0x08 [6] = 1
00'b = 110 mVpp (Default)
01'b = 100 mVpp
10'b = 150 mVpp
11'b = 130 mVpp
R/W
0x00
Set bits to 0x00
R/W
0x00
R/W
0x00
R/W
0x2F
R/W
0xED
Set bits to 0x00
Set bits to 0
1 = Allow IDLE Select control in bit 4
Yes
0 = Automatic IDLE detect
(Must set 0x08[4] = 1 to override pin-select
control)
1 = Output is muted (electrical IDLE)
Yes
0 = Output is on
(Must set 0x08[4] = 1 to override pin-select
control)
Yes Set bits to 0
Set bits to 0
Yes
EQ Boost Default to 24 dB
See Table 3 for Information
Yes
1 = Short Circuit Protection ON
0 = Short Circuit Protection OFF
Yes Set bit to 1
Yes Set bits to 101'b
Yes Set bits to 101'b
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