ONET1130EP Datasheet, PDF (36/55 Pages) Texas Instruments – 11.7 Gbps Transceiver with Modulator Driver

ONET1130EP
SLLSEO4A – JUNE 2015 – REVISED JULY 2015
8.6.3.2 TX Register 11 (offset = 0000 0000) [reset = 0h]
Figure 49. TX Register 11
7
6
5
4
3
2
1
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 14. TX Register 11 Field Descriptions
Bit Field
7 TXAMPRNG
6 TXPKSEL
5 TXTCSEL1
4 TXTCSEL0
3 TXCTLE3
2 TXCTLE2
1 TXCTLE1
0 TXCTLE0
Type Reset
R/W 0h
R/W 0h
R/W 0h
R/W 0h
R/W 0h
R/W 0h
R/W 0h
R/W 0h
Description
TX output AMP range
1 = Half TX output amplitude range
0 = Full TX output amplitude range
TX output peaking width
1 = wide peaking width
0 = narrow peaking width
TXOUT temperature compensation select bit 1
TXOUT temperature compensation select bit 0
TX input CTLE setting
0000 = minimum
1111 = maximum
8.6.3.3 TX Register 12 (offset = 0000 0000) [reset = 0h]
Figure 50. TX Register 12
7
6
5
4
3
2
1
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Bit Field
7 TXMOD7
6 TXMOD6
5 TXMOD5
4 TXMOD4
3 TXMOD3
2 TXMOD2
1 TXMOD1
0 TXMOD0
Table 15. TX Register 12 Field Descriptions
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
0h
0h
0h
0h
0h
0h
0h
0h
Description
TX Modulation current setting: sets the output voltage
Output Voltage: 2.4 Vpp / 9.5 mVpp steps
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0
0
R/W
0
0
R/W
36
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