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DS3171 Datasheet, PDF (206/232 Pages) Dallas Semiconductor – Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers
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DS3171/DS3172/DS3173/DS3174
Register Name:
Register Description:
Register Address:
CC.RSR1
Clear Channel Receive Status Register #1
(1,3,5,7)24h
Bit #
15
14
13
12
11
10
9
8
Name Reserved Reserved
--
Reserved Reserved Reserved Reserved RUA1
Default
0
0
0
0
0
0
0
0
Bit #
7
6
5
4
3
2
1
0
Name Reserved Reserved
--
Reserved Reserved Reserved Reserved
LOS
Default
0
0
0
0
0
0
0
0
Bit 8: Receive Unframed All 1’s (RUA1) – When 0, the receive frame processor is not in a receive unframed all
1’s (RUA1) condition. When 1, the receive frame processor is in an RUA1 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:
Register Description:
Register Address:
CC.RSRL1
Clear Channel Receive Status Register Latched #1
(1,3,5,7)28h
Bit #
Name
Default
15
Reserved
0
14
Reserved
0
13
Reserved
0
12
Reserved
0
11
Reserved
0
10
Reserved
0
9
Reserved
0
Bit #
Name
Default
7
Reserved
0
6
Reserved
0
5
Reserved
0
4
Reserved
0
3
Reserved
0
2
Reserved
0
1
Reserved
0
8
RUA1L
0
0
LOSL
0
Bit 8: Receive Unframed All 1’s Latched (RUA1L) – This bit is set when the RUA1 bit changes state.
Bit 0: Loss Of Signal Change Latched (LOSL) – This bit is set when the LOS bit changes state.
Register Name:
Register Description:
Register Address:
CC.RSRIE1
Clear Channel Receive Status Register Interrupt Enable #1
(1,3,5,7)2Ch
Bit #
Name
Default
15
Reserved
0
14
Reserved
0
13
Reserved
0
12
Reserved
0
11
Reserved
0
10
Reserved
0
9
Reserved
0
Bit #
Name
Default
7
Reserved
0
6
Reserved
0
5
Reserved
0
4
Reserved
0
3
Reserved
0
2
Reserved
0
1
Reserved
0
8
RUA1IE
0
0
LOSIE
0
Bit 8: Receive Unframed All 1’s Interrupt Enable (RUA1IE) – This bit enables an interrupt if the RUA1L bit is set.
0 = interrupt disabled
1 = interrupt enabled
Bit 0: Loss Of Signal Interrupt Enable (LOSIE) – This bit enables an interrupt if the LOSL bit is set.
0 = interrupt disabled
1 = interrupt enabled
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