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E3g751.rsr2, E3g751.rsrl1 – Rainbow Electronics DS3170 User Manual

Page 188

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DS3170 DS3/E3 Single-Chip Transceiver

188 of 233

Bit 1: Out Of Frame (OOF) – When 0, the receive frame processor is not in an out of frame (OOF) condition.
When 1, the receive frame processor is in an OOF condition.

Bit 0: Loss Of Signal (LOS) – When 0, the receive loss of signal (LOS) input (RLOS) is low. When 1, RLOS is
high.


Register Name:

E3G751.RSR2

Register Description:

E3 G.751 Receive Status Register #2

Register Address:

126h


Bit

# 15 14 13 12 11 10 9 8

Name

-- -- -- -- -- -- -- --


Bit

# 7 6 5 4 3 2 1 0

Name

-- -- -- --

Reserved Reserved Reserved FEC

Bit 0: Framing Error Count (FEC) – When 0, the framing error count is zero. When 1, the framing error count is
one or more.


Register Name:

E3G751.RSRL1

Register Description:

E3 G.751 Receive Status Register Latched #1

Register Address:

128h


Bit

# 15 14 13 12 11 10 9 8

Name Reserved Reserved Reserved Reserved Reserved Reserved Reserved RUA1L

Bit

# 7 6 5 4 3 2 1 0

Name ACL NCL COFAL LOFL RDIL AISL OOFL LOSL

Bit 8: Receive Unframed All 1’s Change Latched (RUA1L) – This bit is set when the RUA1 bit changes state.

Bit 7: A Bit Change Latched (ACL) – This bit is set when the RAB bit changes state.

Bit 6: N Bit Change Latched (NCL) – This bit is set when the RNB bit changes state.

Bit 5: Change Of Frame Alignment Latched (COFAL) – This bit is set when the data path frame counters are
updated with a new frame alignment that is different from the previous frame alignment.

Bit 4: Loss Of Frame Change Latched (LOFL) – This bit is set when the LOF bit changes state.

Bit 3: Remote Alarm Indication Change Latched (RDIL) – This bit is set when the RDI bit changes state.

Bit 2: Alarm Indication Signal Change Latched (AISL) – This bit is set when the AIS bit changes state.

Bit 1: Out Of Frame Change Latched (OOFL) – This bit is set when the OOF bit changes state.

Bit 0: Loss Of Signal Change Latched (LOSL) – This bit is set when the LOS bit changes state.