QT2032-EKG-1A2 Applied Micro Circuits Corporation, QT2032-EKG-1A2 Datasheet - Page 62

• Manufacturer Part Number: QT2032-EKG-1A2
• Manufacturer: Applied Micro Circuits Corporation

Specifications of QT2032-EKG-1A2

• Lead Free Status / RoHS Status: Supplier Unconfirmed

QT2022/32 - Data Sheet: DS3051
8.4.1 Link Alarm Status Interrupt Pin (LASI)
The LASI pin is an active-low output used to indicate that a link fault condition has been detected in either the
receive or transmit path. It can be used as an interrupt to a microcontroller. The block diagram for LASI is shown in
Figure 17. Control registers are provided so LASI can be programmed to assert only for specific fault conditions.
Figure 17: LASI Block Diagram
LASI = {OR of (reg 1.9005h.n ‘bit wise AND’ reg 1.9002h.n) for n=0..15}, where register 1.9005h contains the alarm
states, and register 1.9002h contains the enable bits for each alarm.
Register bit 1.9005h.7 is a writable ‘LASI test data’ register bit which can be used to test the LASI pin connectivity.
It is enabled by setting register bit 1.9002h.7 1.9002h.3 to 1. When enabled, the LASI output state will be deter-
mined by the “LASI test data” value.
Table 23: LASI Control Registers
62
LS_ALARM
TX_ALARM
RX_ALARM
PHY XS Lane Alignment
PHY XS Lane Alignment
Global PMD Signal OK
Global PMD Signal OK
RX_ALARM Control
RX_ALARM Control
TX_ALARM Control
TX_ALARM Control
RX_ALARM Status
RX_ALARM Status
TX_ALARM Status
TX_ALARM Status
PCS Block Lock
PCS Block Lock
(4.24.12)
(4.24.12)
Irrespective of LINK_STATUS signal state
Irrespective of LINK_STATUS signal state
1.9004h
1.9004h
1.9001h
1.9001h
1.9003h
1.9003h
1.9000h
1.9000h
(1.10.0)
(1.10.0)
(3.32.0)
(3.32.0)
Clear on read of LASI Status register
Clear on read of LASI Status register
Description
Bitwise Alarm enable
Bitwise Alarm enable
Bitwise Alarm enable
Bitwise Alarm enable
AppliedMicro - Confidential & Proprietary
LASI_INTB
LASI_INTB
Input Pin
Input Pin
D
D
D
SET
SET
SET
CLR
CLR
CLR
Q
Q
Q
Q
Q
Q
RX_ALARM
RX_ALARM
TX_ALARM
TX_ALARM
1.9005.0
1.9005.1
1.9005.2
LS_ALARM
LS_ALARM
16b hex
LASI Status
LASI Status
MDIO Status Register
1.9005h
1.9005h
LASI Control
LASI Control
1.9002h
1.9002h
RO/LH
RO
RO
LASI Test Data
LASI Test Data
type
(1.9005h.7)
(1.9005h.7)
1.9002.0
1.9002.1
1.9002.2
16b hex
MDIO Enable Register
(default=0)
(default=0)
1.9002h.7
1.9002h.7
0
0
1
1
0
0
0
default value
Revision 5.11
LINK ALARM
LINK ALARM
INTERRUPT
INTERRUPT
STATUS
STATUS
output
output