XRS10L120 Datasheet, PDF (46/52 Pages) Exar Corporation – SERIAL ATA II: 1:2 PORT MULTIPLIER

XRS10L120
PRELIMINARY
SERIAL ATA II: 1:2 PORT MULTIPLIER
TABLE 15: SATA PORT MULTIPLIER REGISTERS
REV. P1.0.1
ADDRESS
HEX
BIT(S)
NAME
RW
RESET
VALUE
DESCRIPTION
0.0085 7:4
Reserved
RO
-
Reserved
3
p_dvc_prt_en
RW
0
1 = enable all port multiplier ports on reset
0 = otherwise
2
p_as_mon_d3
RW
1
Control bit that
1 = monitors for unaligned Dword primitives
(Device 3 link layer)
0 = otherwise
1
p_sd_disable_d3
RW
0
Programmable scrambler/de-scrambler disable
(Device 3 link layer)
1 = disable
0 = enable
0
p_rx_feclr_d3
RW
0
Programmable fifo error clear for transmit elastic fifo
(Device 3 link layer)
1 = clear sticky error
0 = otherwise
0.0086 7:6
Reserved
RO
-
Reserved
5:3
p_dvc1_wght[2:0]
RW
000 Device port 1 weight for weighted-round robin arbitra-
tion Valid values 1-7
2:0
p_dvc0_wght[2:0]
RW
000 Device port 0 weight for weighted-round robin arbitra-
tion Valid values 1-7
0.0087 7:6
Reserved
RO
-
Reserved
5:3
p_dvc3_wght[2:0]
RW
000 Device port 3 weight for weighted-round robin arbitra-
tion Valid values 1-7
2:0
p_dvc2_wght[2:0]
RW
000 Device port 2 weight for weighted-round robin arbitra-
tion Valid values 1-7
0.0088 7:0
p_intvl_val[7:0]
RW
0xB7 programmable communication interval value for hot
plug FSM Interval is 27.3us * count
0.0089 7
Reserved
RO
-
Reserved
6:3
p_msb_rscnt[3:0]
RW
1000 The 4 MSB’s of the 20 bit timeout value used to decide
how long the PM should wait before issuing a restart
2
p_dlock_err_clr
RW
0
1 = clear the stick deadlock error indicator
0 = otherwise
1
p_restart_pm_en
RW
1
1 = port multiplier will restart if it enters deadlock
0 = otherwise
0
p_pwrmng_on
RW
1
1 = power management turned on in port
0 = power management turned off in port
0.0090 7
Reserved
RO
-
Reserved
6:4
p_col_ad[2:0]
RW
000 Col address of the SRAM in test mode
3:0
p_row_ad[11:0]
RW
0x00 Row address of the SRAM in test mode
44