CX28344 Conexant, CX28344 Datasheet - Page 146
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CX28344
Manufacturer Part Number
CX28344
Description
(CX2834x) Dual / Triple / Quad / Hex / Octal - Enhanced DS3 / E3 Framer
Manufacturer
Conexant
Datasheet
1.CX28344.pdf
(195 pages)
- Current page: 146 of 195
- Download datasheet (2Mb)
Registers
ParCtrltr
Value after reset: 00(h)
Direction: Read only
Value after enable: 00(h)
SEFStrt
LOSStrt
IdleStrt
YelStrt
AISStrt
OOFStrt
3-34
Reserved
7
Reserved
Parity Error Counter Interrupt—Set high if the parity error counter has either rolled over or is
saturated. The Parity Error Counter Interrupt Enable bit determines the status of the counter
(roll over or saturation).
In E3-G.751 mode, this bit is low because there is no parity/BIP-8 check defined.
Severely Errored Frame Event Start—Set when the receiver detects an SEF condition. This bit
is cleared when this register is read. This bit is low in E3 modes since there is no defined SEF
alarm in these modes.
Loss of Signal Event Start—Set when the signal received prior to B3ZS/HDB3 decoding is
detected as lost by the receiver. This bit is cleared when this register is read.
Idle Event Start—Set when the receiver detects the start of an Idle event in DS3 mode. This bit
is cleared when this register is read. This is low in E3 modes, because there is no defined E3
idle signal.
Yellow Alarm Start—Set when the receiver detects the start of an RAI/RDI alarm. This bit is
cleared when this register is read.
AIS Alarm Start—Set when the receiver detects the start of an AIS alarm. This bit is cleared
when this register is read.
Out of Frame Event Start—Set when the channel gets into an OOF condition. This bit is
cleared when this register is read.
6
Dual-Edge Interrupt Status Registers
The Dual-Edge Interrupt Status registers provide indications for starting and ending
points of continuous events, to enable monitoring of the events’ length. All bits are set
due to an event and cleared when the register is read. In addition, every event bit (start
or end) is cleared upon setting the channel’s enable bit for that event to prevent an
immediate interrupt due to an old event.
Alarm Start Interrupt Status Register (SR03i)
SEFStrt
5
Mindspeed Technologies™
LOSStrt
4
IdleStrt
3
YelStrt
2
AISStrt
CX28342/3/4/6/8 Data Sheet
1
28348-DSH-001-B
OOFStrt
0
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