TLK3132 Datasheet, PDF (41/103 Pages) Texas Instruments – 2-Channel Multi-Rate Transceiver

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TLK3132
2-Channel Multi-Rate Transceiver
SLLS956 – DECEMBER 2008
Table 2-36. SERDES_RX1_CONFIG⁽¹⁾
BIT(s)
36868.15:12
36868.11:9
36868.8
36868.7:6
36868.5:4
36868.3:2
36868.1
36868.0
ADDRESS: 0x9004
DEFAULT: 0x0001
NAME
DESCRIPTION
EQUALIZER
Adaptive equalization control
0000 = Adaptive equalization disabled. Equalizer provides flat response at maximum gain.
0001 = Full adaptive equalization
0010 to 1111 = Reserved
CDR
Clock data recovery algorithm selection
INVPAIR 1 = Inverts polarity of RXP and RXN
LOS
00 = Loss of signal detection disabled
01 = Reserved
10 = Loss of signal detection enabled with threshold in the range of 85-175 mVdfpp.
11 = Reserved.
ALIGN
Receiver symbol alignment selection
00 = Alignment disabled.
01 = Comma alignment enabled
10 = Symbol alignment will be performed by one bit position when this mode is selected (i.e
ALIGN changes from 00 to 10)
11= Reserved
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
(1) These are SERDES receiver control bits for channel 1.
ACCESS
RW
RW
RW
RW
RW
RW
RW
RW
Table 2-37. SERDES_TX0_CONFIG⁽¹⁾
BIT(s)
36874.11:9
36874.8
36874.7:4
36874.3
36874.1
36874.0
ADDRESS: 0x900A
DEFAULT: 0x0001
NAME
DESCRIPTION
SWING
Transmitter Output swing control for SERDES transmitter.
Refer to Table 2-40: Output Swing Control
If swing is set to 750mV or more, CM bit (36874.8) needs to be set to 1.
If swing is set to 625 mV or less, CM bit (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 to Table 2-39: 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
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
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