TLK10002
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SLLSE75 –MAY 2011
Table 12. High Speed Side SERDES Cursor Reduction Factor Weights
4.4:0
4.4:0
VALUE
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
CURSOR REDUCTION (%)
VALUE
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
CURSOR REDUCTION (%)
0
17
20
22
25
27
30
32
35
37
40
42
45
47
50
52
55
2.5
5.0
7.5
10.0
12
15
Reserved
HS_ SERDES_CONTROL_4— Address: 0x05 Default: 0x2000
BIT(s)
NAME
DESCRIPTION
ACCESS
5.15
HS_RX_INVPAIR
Receiver polarity.
RW
0 = Normal polarity. HSRXxP considered positive data. HSRXxN considered negative
data (Default 1’b0)
1 = Inverted polarity. HSRXxP considered negative data. HSRXxN considered positive
data
5.14
5.13
HS_TX_INVPAIR
HS_FIRUPT
Transmitter polarity.
RW
RW
0 = Normal polarity. HSTXxP considered positive data and HSTXxN considered
negative data (Default 1’b0)
1 = Inverted polarity. HSTXxP considered negative data and HSTXxN considered
positive data
HS SERDES Tx pre/post cursor filter update control
0 = Holds last state; any changes to TWCRF, TWPRE, TWPST1/2 will not take effect
until FIRUPT goes high.
1 = Pre/Post cursor fields can be updated by changing respective fields (Default 1’b1)
5.12:8
5.7:4
5.3:0
HS_TWPOST1[4:0]
HS_TWPRE[3:0]
Adjacent post cursor1 Tap weight. Selects TAP settings for TX waveform. (Default 5’b00000)
Refer to Table 13
RW
RW
RW
Precursor Tap weight. Selects TAP settings for TX waveform. (Default 4’b0000)
Refer to Table 15
HS_TWPOST2[3:0]
Adjacent post cursor2 Tap weight. Selects TAP settings for TX waveform. (Default 4’b0000)
Refer to Table 14
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