DS100BR111_13 Datasheet, PDF (30/43 Pages) Texas Instruments – Ultra Low Power 10.3 Gbps 2-Channel Repeater with Input Equalization and Output De-Emphasis

DS100BR111
SNLS338E – JANUARY 2011 – REVISED FEBRUARY 2013
www.ti.com
Address
0x18
Register
Name
CH B
Control 2
0x19
CH B
Idle
Threshold
0x23
CH A VOD
Control
0x25
Reserved
0x28
Idle Control
Table 9. SMBus Register Map (continued)
Bits
Field
7:5 Reserved
4
Reserved
3
Reserved
2:0 DEM [2:0]
Type
R
R/W
7
Slow OOB
R/W
6:4 Reserved
3:2 IDLE thA[1:0]
1:0 IDLE thD[1:0]
7:6 Reserved
R/W
4:2 VOD_CH0[2:0]
1:0 Reserved
7:5 Reserved
R/W
4:2 Reserved
1:0 Reserved
7
Reserved
R/W
6
Override Fast Idle
5:4 en_high_idle_th[1:
0]
3:2 en_fast_idle[1:0]
1:0 Reserved
Default
0x82
0x00
0x00
0xAD
0x00
EEPROM
Reg Bit
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Description
Set bits to = 100'b
Set bit to 0
Set bit to 0
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 00'b.
DS100BR111 VOD Controls for CH A (Default =
000'b)
000'b = 700 mV
001'b = 800 mV
010'b = 900 mV
011'b = 1000 mV
100'b = 1100 mV
101'b = 1200 mV
110'b = 1300 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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