XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 109

• Manufacturer Part Number: XRT84L38IB
• Description: Network Controller & Processor ICs 8 Ch T1/E1 Framer
• Manufacturer: Exar Corporation

Specifications of XRT84L38IB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.1
Receive Data Link Select Register (RDLSR) - T1 Mode (Indirect Address = 0xn0H, 0x0CH)
B
IT
B
N
2 - 0
R/W
IT
UMBER
0
7
Reserved
FAS Re-synchronization
Criteria
B
R/W
IT
0
6
B
IT
N
AME
Bandwidth
Select Bits
Data Link
Receive
B
[1:0]
R/W
IT
0
5
B
IT
R/W
T
YPE
B
R/W
IT
0
4
FAS Re-synchronization Criteria:
These READ/WRITE bit-field determine the criteria of Loss of
FAS Multi-frame Synchronization.
When these bits are set to 000:
It is an illegal entry. The user should not set these bits to 000.
When these bits are set to 001:
If one FAS Multi-frame Alignment Signal error in the incoming
frame is detected, the framer will declare Loss of FAS Multi-
frame Synchronization.
When these bits are set to 010:
If two consecutive FAS Multi-frame Alignment Signal errors in
the incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
When these bits are set to 011:
If three consecutive FAS Multi-frame Alignment Signal errors in
the incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
When these bits are set to 100:
If four consecutive FAS Multi-frame Alignment Signal errors in
the incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
When these bits are set to 101:
If five consecutive FAS Multi-frame Alignment Signal errors in
the incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
When these bits are set to 110:
If six consecutive FAS Multi-frame Alignment Signal errors in the
incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
When these bits are set to 111:
If seven consecutive FAS Multi-frame Alignment Signal errors in
the incoming frames are detected, the framer will declare Loss of
FAS Multi-frame Synchronization.
89
D/E Timeslot Destination
B
R/W
IT
0
Select Bits [1:0]
3
B
B
R/W
IT
IT
0
D
2
ESCRIPTION
OCTAL T1/E1/J1 FRAMER
Data Link Destination Select
B
R/W
IT
0
1
Bits [1:0]
XRT84L38
B
R/W
IT
0
0