TLK3134_1 Datasheet, PDF (74/150 Pages) Texas Instruments – 4-Channel Multi-Rate Transceiver

TLK3134
4-Channel Multi-Rate Transceiver
SLLS838D – MAY 2007 – REVISED JULY 2008
BIT(s)
4/5.36876.1
4/5.36876.0
Table 2-101. SERDES_TX1_CONFIG (continued)
ADDRESS: 0x900C
DEFAULT: 0x0001
NAME
DESCRIPTION
ENTEST
1= Enables test modes specified in TESTCFG (Register 0x9011)
ENTX
1 = Enables transmitter
0 = Disables transmitter
Table 2-102. SERDES_TX2_CONFIG⁽¹⁾
BIT(s)
4/5.36878.15:12
4/5.36878.11:9
4/5.36878.8
4/5.36878.7:4
4/5.36878.3
4/5.36878.2
4/5.36878.1
4/5.36878.0
ADDRESS: 0x900E
DEFAULT: 0x0001
NAME
DESCRIPTION
Reserved
Always reads 0
SWING
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.
CM
1 = Applicable for SWING settings 750 mV or more.
0 = Applicable for SWING settings 625 mV or less.
DE-EMPHASIS
Transmitter Differential output De-emphasis control
Refer Table 2-104: Transmit De-emphasis Control
INVPAIR
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
Reserved
Always reads 0
ENTEST
1= Enables test modes specified in TESTCFG (Register 0x9011)
ENTX
1 = Enables transmitter
0 = Disables transmitter
(1) These are SERDES transmitter control bits for channel 2.
Table 2-103. SERDES_TX3_CONFIG⁽¹⁾
BIT(s)
4/5.36880.15:12
4/5.36880.11:9
4/5.36880.8
4/5.36880.7:4
4/5.36880.3
4/5.36880.2
4/5.36880.1
4/5.36880.0
ADDRESS: 0x9010
DEFAULT: 0x0001
NAME
DESCRIPTION
Reserved
Always reads 0
SWING
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.
CM
1 = Applicable for SWING settings 750 mV or more.
0 = Applicable for SWING settings 625 mV or less.
DE-EMPHASIS
Transmitter Differential output De-emphasis control
Refer Table 2-104: Transmit De-emphasis Control
INVPAIR
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
Reserved
Always reads 0
ENTEST
1= Enables test modes specified in TESTCFG (Register 0x9011)
ENTX
1 = Enables transmitter
0 = Disables transmitter
(1) These are SERDES transmitter control bits for channel 3.
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