Serdes_Tx2_Config; Serdes_Tx3_Config - Texas Instruments TLK3134 Data Manual

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ADDRESS: 0x900C
BIT(s)
4/5.36876.7:4 DE-EMPHASIS
4/5.36876.3 INVPAIR
4/5.36876.2 Reserved
4/5.36876.1 ENTEST
4/5.36876.0 ENTX
ADDRESS: 0x900E
BIT(s)
4/5.36878.15:12 Reserved
4/5.36878.11:9 SWING
4/5.36878.8 CM
4/5.36878.7:4 DE-EMPHASIS
4/5.36878.3 INVPAIR
4/5.36878.2 Reserved
4/5.36878.1 ENTEST
4/5.36878.0 ENTX
(1) These are SERDES transmitter control bits for channel 2.
ADDRESS: 0x9010
BIT(s)
4/5.36880.15:12 Reserved
4/5.36880.11:9 SWING
4/5.36880.8 CM
4/5.36880.7:4 DE-EMPHASIS
(1) These are SERDES transmitter control bits for channel 3.
Copyright © 2007–2009, Texas Instruments Incorporated
Table 2-101. SERDES_TX1_CONFIG
NAME
Transmitter Differential output De-emphasis control
Refer Table 2-104: Transmit De-emphasis Control
Transmitter Polarity
1 = Inverted polarity. TXP considered negative data and TXN considered
positive data
0 = Normal polarity. TXP considered positive data and TXN considered
negative data
Always reads 0
1= Enables test modes specified in TESTCFG (Register 0x9011)
1 = Enables transmitter
0 = Disables transmitter
Table 2-102. SERDES_TX2_CONFIG
NAME
Always reads 0
Transmitter Output swing control for SERDES transmitter
Refer Table 2-105: Output swing Control
If swing is set to 750mV or more, CM bit (4/5.36878.8) needs to be set to
1.
If swing is set to 625 mV or less, CM bit (4/5.36878.8) needs to be set to
0.
1 = Applicable for SWING settings 750 mV or more.
0 = Applicable for SWING settings 625 mV or less.
Transmitter Differential output De-emphasis control
Refer Table 2-104: Transmit De-emphasis Control
Transmitter Polarity
1 = Inverted polarity. TXP considered negative data and TXN considered
positive data
0 = Normal polarity. TXP considered positive data and TXN considered
negative data
Always reads 0
1= Enables test modes specified in TESTCFG (Register 0x9011)
1 = Enables transmitter
0 = Disables transmitter
Table 2-103. SERDES_TX3_CONFIG
NAME
Always reads 0
Transmitter Output swing control for SERDES transmitter
Refer Table 2-105: Output swing Control
If swing is set to 750mV or more, CM bit (4/5.36880.8) needs to be set to
1.
If swing is set to 625 mV or less, CM bit (4/5.36880.8) needs to be set to
0.
1 = Applicable for SWING settings 750 mV or more.
0 = Applicable for SWING settings 625 mV or less.
Transmitter Differential output De-emphasis control
Refer Table 2-104: Transmit De-emphasis Control
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SLLS838F – MAY 2007 – REVISED DECEMBER 2009
(1)
(continued)
DEFAULT: 0x0001
DESCRIPTION
(1)
DEFAULT: 0x0001
DESCRIPTION
(1)
DEFAULT: 0x0001
DESCRIPTION
TLK3134
TLK3134
ACCESS
RW
RW
RW
RW
RW
ACCESS
RW
RW
RW
RW
RW
RW
RW
RW
ACCESS
RW
RW
RW
RW
Detailed Description 73