cx28348 Mindspeed Technologies, cx28348 Datasheet - Page 143
cx28348
Manufacturer Part Number
cx28348
Description
Dual/triple/quad/hex/octal-enhanced Ds3/e3 Framer
Manufacturer
Mindspeed Technologies
Datasheet
1.CX28348.pdf
(195 pages)
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CX28342/3/4/6/8 Data Sheet
Value after reset: 81(h)
Direction: Read only
Value after enable: If RefrmStp bit is clear—81(h)
ReFrm
LOSAlm
IdleDet
YelDet
AISDet
OOFAlm
28348-DSH-001-B
ReFrm
7
Reserved
Reframe in Progress—Set while the framing circuit searches for a valid framing pattern in
either DS3 or E3 modes.
Loss-of-Signal Alarm—Indicates that the received signal prior to B3ZS/HDB3 decoding has
been lost. This signal is set as soon as the receiver detects the loss-of-signal condition and
clears when the receiver detects a legal signal.
Idle Code Detect—Set if an idle pattern is found. This bit is low in E3 modes, since there is no
defined E3 idle signal.
Yellow Alarm Detect—Set when a RAI/RDI event is detected in the receiver.
Alarm Indication Signal Detect—Set if the receiver detects an AIS event.
Out of Frame Alarm—Set when an OOF condition is detected by the receiver. This condition
initiates a reframe.
If RefrmStp bit is set—01(h)
6
Channel Status Registers
The index i appearing in the register names represents the channel number, one per
channel.
DS3/E3 Maintenance Status Register (SR00i)
The DS3/E3 Maintenance Status register contains the major DS3/E3 maintenance
indicators. Alarm detection details are in
Reserved
5
Mindspeed Technologies™
LOSAlm
4
IdleDet
3
Section
YelDet
2.2.5.
2
AISDet
1
OOFAlm
0
Registers
3
-
31
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