XRS10L120 Datasheet, PDF (25/52 Pages) Exar Corporation – SERIAL ATA II: 1:2 PORT MULTIPLIER

REV. P1.0.1
ADDRESS
HEX
N.0001
N.0021
N.0002
N.0022
N.0003
N.0023
PRELIMINARY
XRS10L120
SERIAL ATA II: 1:2 PORT MULTIPLIER
TABLE 9: TRANSMIT/RECEIVE LANE REGISTERS (MDIO DEVICE 1 AND 2)
BIT(S)
NAME
R/W
DEFAULT
DESCRPTION
7:3
RiseFall_Coef0[4:0] R/W
7:3
RiseFall_Coef1[4:0]
2:0
Transmit_Eq0[2:0]
R/W
Transmit_Eq1[2:0]
7:6
mscProg0[1:0]
RW
7:6
mscProg1[1:0]
5:3 Beacon_Swing0[2:0] R/W
5:3 Beacon_Swing1[2:0]
2:0
Output_Swing0[2:0] R/W
2:0
Output_Swing1[2:0]
7
enEqB
RO
6:4
noSigLevel0[2:0]
RW
noSigLevel1[2:0]
3:0
hpProgOvrd0[3:0]
RW
hpProgOvrd1[3:0]
00000
000
01
Output rise/fall time coefficient
00000 = +0ps
11111 = +25ps
01001 = SATA 3G
00010 = SATA 1.5G
other = increases rise/fall times monotonically
between 0 and 25ps
Transmit equalization control
000 = 0% transmit preemphasis
001 = 6.5% transmit preemphasis
010 = 13% transmit preemphasis
011 = 19.5% transmit preemphasis
100 = 26% transmit preemphasis
101 = 32.5% transmit preemphasis
110 = 39% transmit preemphasis
111 = 45.5% transmit preemphasis
Receive equalization control – boost at 1.5GHz
100 Transmit swing size for OOB Signals
000 = 800mV
001 = 700mV
010 = 600mV
011 = 500mV
100 = 400mV
101 = 300mV
110 = 200mV
111 = 0mV
100 Transmit swing size in normal operation
000 = 800mV
001 = 700mV
010 = 600mV
011 = 500mV
100 = 400mV
101 = 300mV
110 =200mV
111 = 0mV
1
Enable receive equalization
0 = enable equalization
1 = disable equalization
001 Nominal threshold for no signal detect
0000 High pole programming override value
23