XRT84L38IB Exar Corporation, XRT84L38IB Datasheet - Page 391

• 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
The table below shows configurations of the Yellow Alarm Generation Select [1:0] bits of the Alarm Generation
Register (AGR).
ALARM GENERATION REGISTER (AGR) (INDIRECT ADDRESS = 0XN0H, 0X08H)
N
UMBER
B
5-4
IT
Yellow Alarm Gen-
eration Select
B
IT
N
AME
B
IT
R/W
T
YPE
These READ/WRITE bit-fields allows the user to choose how the
XRT84L38 would generate Yellow Alarm and CAS Multi-frame Yellow
Alarm.
00 - Transmission of Yellow Alarm and CAS Multi-frame Yellow Alarm is
disabled.
01 - The Yellow Alarm bit is transmitted by echoing the received FAS align-
ment pattern. If the correct FAS alignment is received, the Yellow Alarm bit
is set to zero. If the FAS alignment pattern is missing or corrupted, the Yel-
low Alarm bit is set to one.
The CAS Multi-frame Yellow Alarm bit is transmitted by echoing the
received CAS Multi-frame alignment pattern (the four zeros pattern). If the
correct CAS Multi-frame alignment is received, the CAS Multi-frame Yellow
Alarm bit is set to zero. If the CAS Multi-frame alignment pattern is missing
or corrupted, the CAS Multi-frame Yellow Alarm bit is set to one.
10 - The Yellow Alarm and CAS Multi-frame Yellow Alarms are transmitted
as zero.
11 - The Yellow Alarm and CAS Multi-frame Yellow Alarms are transmitted
as one.
371
B
IT
D
ESCRIPTION
OCTAL T1/E1/J1 FRAMER
XRT84L38