DS64BR111_13 Datasheet, PDF (28/39 Pages) Texas Instruments – DS64BR111 Ultra Low Power 6.4 Gbps 2-Channel Repeaters with Input Equalization and Output De-Emphasis

DS64BR111
SNLS343C – SEPTEMBER 2011 – REVISED APRIL 2013
www.ti.com
Table 9. SMBus Register Map (continued)
Address
0x17
Register
Name
CH B
Control 1
0x18
CH B
Control 2
Bits
Field
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 0xED
R 0x82
R/W
0x19
CH B
Idle
Threshold
7
Slow OOB
6:4 Reserved
3:2 idle_thA[1:0]
R/W 0x00
1:0 idle_thD[1:0]
0x23
BR111 CH A 7:6 Reserved
VOD
4:2 VOD_CH0[2:0]
R/W 0x00
0x25
0x28
1:0 Reserved
Reserved
7:5 Reserved
R/W 0xAD
4:2 Reserved
1:0 Reserved
Idle Control 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
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 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.
DS64BR111 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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