10. Registers > Lane Status Registers
CPS-1848 User Manual
270
June 2, 2014
Formal Status
This document is confidential and is subject to an NDA.
Integrated Device Technology
10.8.4
Lane {0..47} Status 1 CSR
For base address information, see
.
Register Name: LANE_{0..47}_STATUS_1_CSR
Reset Value: 0x2000_0000
Register Offset: 0x (0x20 * lane_num)
Bits
0
1
2
3
4
5
6
7
00:07
IDLE2_RX
CURRENT VALUES_C
HG
LP_RX_TY
PE
LP_TRAIN
ED
LP_PORT_WIDTH
08:15
LP_LANE
LP_NEG1_TAP
LP_POS1_TAP
16:23
LP_SCRAM
Reserved
24:31
Reserved
Bits
Name
Description
Type
Reset
Value
0
IDLE2_RX
0 = No IDLE2 sequence has been received since the lane was
last reset.
1 = An IDLE2 sequence has been received at some time since
the lane was last reset.
RO
0
1
CURRENT
This field indicates whether the information in this register that is
collected from the IDLE2 sequence is current. When asserted,
this field indicates that the information is from the last IDLE2 CS
Marker and CS field that were received by the lane without
detected errors and that the lane’s lane_sync signal has
remained asserted since the last CS Marker and CS field was
received.
0 = Not current
1 = Current
RO
0
2
VALUES_CHG
This field indicates whether the values of any of the other 31 bits
in this register have changed since the register was last read.
This bit is set to zero when the register is read.
0 = Values have not changed
1 = Values have changed
RR
1
3
LP_RX_TYPE
Link Partner Receiver Type
0 = Short run
1 = Medium or long run
RO
0