DS100BR111A_14 Datasheet, PDF (27/39 Pages) Texas Instruments – Ultra Low Power 10.3 Gbps 2-Channel Repeaters with Input Equalization and Output De-Emphasis

DS100BR111A
www.ti.com
SNLS400C – JANUARY 2012 – REVISED APRIL 2013
Address
0x16
0x17
Register
Name
CH B
EQ Setting
CH B
Control 1
0x18
CH B
Control 2
0x19
CH B
Idle
Threshold
0x23
BR111A CH
A VOD
0x25
0x28
BR210A CH
A VOD
Idle Control
Table 8. SMBus Register Map (continued)
Bits
Field
7:0 BOOST [7:0]
7
Sel_scp
6
Reserved
5:3 Reserved
2:0 Reserved
7:5 Reserved
4
Reserved
3
Reserved
2:0 DEM [2:0]
Type Default
R/W 0x2F
R/W 0xED
R
0x82
R/W
7
Slow OOB
6:4 Reserved
3:2 IDLE thA[1:0]
R/W 0x00
1:0 IDLE_thD[1:0]
7:6 Reserved
4:2 VOD_CH0[2:0]
R/W 0x00
1:0 Reserved
7:5 Reserved
R/W 0xAD
4:2 VOD_CH0[2:0]
1:0 Reserved
7
Reserved
R/W 0x00
6
Override Fast Idle
5:4 en_high_idle_th[1:0]
3:2 en_fast_idle[1:0]
1:0 Reserved
EEPROM
Reg Bit
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Description
EQ Boost Default to 24 dB
SeeTable 2 for Information
1 = Short Circuit Protection ON
0 = Short Circuit Protection OFF
Set bit to 1'b
Set bits to = 101'b
Set bits to = 101'b
Set bits to = 100'b
Set bit to 0'b
Set bit to 0'b
De-Emphasis (Default = -3.5 dB)
000'b = -0.0 dB
001'b = -1.5 dB
010'b = -3.5 dB
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
Slow OOB Enable (1); Disable (0)
Set bits to 000'b.
Assert Thresholds
Use only if register 0x08 [6] = 1
00 = 180 mV (Default)
01 = 160 mV
10 = 210 mV
11= 190 mV
De-assert Thresholds
Use only if register 0x08 [6] = 1
00 = 110 mV (Default)
01 = 100 mV
10 = 150 mV
11= 130 mV
Set bits to 0.
DS100BR111A VOD Controls for CH A (Default
= 000'b)
000'b = 575 mV
001'b = 650 mV
010'b = 750 mV
011'b = 850 mV
100'b = 950 mV
101'b = 1050 mV
110'b = 1150 mV
Set bits to 00'b.
Set bits to 101'b.
Set bits to 011'b.
Set bits to 01'b.
Enable high SD thresholds
[5]: CH A
[4]: CH B
Enable Fast Idle
[3]: CH A
[2]: CH B
Set bits to 00'b.
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