TLK3134_1 Datasheet, PDF (73/150 Pages) Texas Instruments – 4-Channel Multi-Rate Transceiver

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BIT(s)
4/5.36872.3:2
4/5.36872.1
4/5.36872.0
TLK3134
4-Channel Multi-Rate Transceiver
SLLS838D – MAY 2007 – REVISED JULY 2008
Table 2-99. SERDES_RX3_CONFIG (continued)
ADDRESS: 0x9008
DEFAULT: 0x0001
NAME
DESCRIPTION
TERM
Receive Termination selection
00 = Common point connected to VDDT (For DC Coupled Systems)
01 = Common point set to 0.8 VDDT (For AC Coupled Systems)
10 = Reserved
11 = Reserved
ENTEST
1= Enables test modes specified in TESTCFG (Register 0x9012)
ENRX
1 = Enables receiver
0 = Disables receiver
ACCESS
RW
RW
RW
Table 2-100. SERDES_TX0_CONFIG⁽¹⁾
BIT(s)
4/5.36874.15:12
4/5.36874.11:9
4/5.36874.8
4/5.36874.7:4
4/5.36874.3
4/5.36874.2
4/5.36874.1
4/5.36874.0
ADDRESS: 0x900A
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 (4/5.36874.8) needs to be set to
1.
If swing is set to 625 mV or less, CM bit (4/5.36874.8) 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 0.
ACCESS
RW
RW
RW
RW
RW
RW
RW
RW
Table 2-101. SERDES_TX1_CONFIG⁽¹⁾
BIT(s)
4/5.36876.15:12
4/5.36876.11:9
4/5.36876.8
4/5.36876.7:4
4/5.36876.3
4/5.36876.2
ADDRESS: 0x900C
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 (4/5.36876.8) needs to be set to
1.
If swing is set to 625 mV or less, CM bit (4/5.36876.8) 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
ACCESS
RW
RW
RW
RW
RW
RW
(1) These are SERDES transmitter control bits for channel 1.
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