71
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit name
Reserved
Reserved
Reserved
Reserved
P_STATE[1:0]
RX_LOP
RX_PAIS
R/W
—
—
—
—
R
R
R
Value
0
0
0
0
0
0
1
1
after
reset
ADDR=0x128: Receive Pointer Status(1)
Bits 7-3: Reserved
Bits 3-2:
P_STATE_[1:0]:
These bits are used to monitor the first pair of H1/H2 bytes in the received
SONET/SDH frame, and to indicate the current state of the HDMP-3001 pointer interpreter. A 00
indicates a normal pointer, a 01 indicates Alarm Indication Signal, and 10 indicates Loss of
Pointer.
Bit 1:
RX_LOP:
Receive Loss of Pointer Indication
Bit 0:
RX_PAIS:
Receive Path Alarm Indication Signal
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Bit name
Reserved
Reserved
LOP3
AIS3
LOP2
AIS2
Reserved
Reserved
R/W
—
—
R
R
R
R
—
—
Value
0
0
0
1
0
1
0
0
after
reset
ADDR=0x12A: Receive Pointer Status(2)
Bits 7-6: Reserved
Bit 5:
LOP3:
It is used to monitor the third pair of H1/H2 pointer bytes for the correct concatenation
indications, and indicates the current state of the HDMP-3001 pointer interpreter. When set, it is in
LOP.
Bit 4:
AIS3:
It is used to monitor the third pair of H1/H2 pointer bytes for the correct concatenation
indications, and indicates the current state of the HDMP-3001 pointer interpreter. When set, it is in
AIS.
Bit 3:
LOP2:
It is used to monitor the second pair of H1/H2 pointer bytes for the correct concatenation
indications, and indicates the current state of the HDMP-3001 pointer interpreter. When set, it is in
LOP.
Bit 2:
AIS2:
It is used to monitor the second pair of H1/H2 pointer bytes for the correct concatenation
indications, and indicates the current state of the HDMP-3001 pointer interpreter. When set, it is in
AIS.
Bits 1-0: Reserved