QT2022/32 - Data Sheet: DS3051
Table 23: LASI Control Registers (Continued)
Description
MDIO Status Register
MDIO Enable Register
16b hex
1.9005.3
type
16b hex
1.9002.3
default value
LASI_INTB interrupt
unused
RO
RO
RO
RO
R/W
RO
0
1.9005.4
1.9002.4
1.9002.5
1.9002.6
1.9002.7
1.9002.f:8
0
0
0
0
0
unused
1.9005.5
1.9005.6
1.9005.7
1.9005.f:8
unused
LASI test data
unused
The LS_ALARM signal is latched high each time any of the following signals changes state:
•
•
•
PMD signal detect (MDIO 1.10.0)
PCS block_lock (MDIO 3.32.0)
PHY_XS lane alignment (MDIO 4.24.12)
When operating the QT2032 in WAN mode, additional WIS alarms can be programmed to assert LASI. These
alarms are used to report a WIS-related link fault on the receive path. The block diagram for the WIS alarms is
shown in Figure 18. The alarms feed into the RX_ALARM Status register shown in Figure 17.
Figure 18: Block diagram of WIS Alarms
WIS Status
2.33 (2.21h)
Bitwise Alarm enable
WIS_ALARM
To RX_ALARM Status
(1.9003h.7)
WIS Control
2.C500h
WIS Extended Status
2.C502h
Bitwise Alarm enable
WIS_EXT_ALARM
To RX_ALARM Status
(1.9003h.8)
WIS Extended Control
2.C501h
Revision 5.11
AppliedMicro - Confidential & Proprietary
63
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
