ds2143qn-t-r Maxim Integrated Products, Inc., ds2143qn-t-r Datasheet - Page 21
ds2143qn-t-r
Manufacturer Part Number
ds2143qn-t-r
Description
Ds2143, Ds2143q E1 Controller
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
1.DS2143QN-T-R.pdf
(44 pages)
- Current page: 21 of 44
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IMR2: INTERRUPT MASK REGISTER 2 (Address=17 Hex)
5.0 ERROR COUNT REGISTERS
There are a set of three counters in the DS2143 that record bipolar violations, errors in the CRC4 SMF
code words, and E-bits as reported by the far end. Each of these three counters are automatically updated
on 1-second boundaries as determined by the 1-second timer in Status Register 2 (SR2.4). Hence, these
registers contain performance data from the previous second. The user can use the interrupt from the 1-
second timer to determine when to read these registers. The user has a full second to read the counters
before the data is lost.
(MSB)
RMF
SYMBOL
RCMF
LORC
LOTC
RMF
TMF
RAF
SEC
TAF
RAF
POSITION
IMR2.7
IMR2.6
IMR2.5
IMR2.4
IMR2.3
IMR2.2
IMR2.1
IMR2.0
TMF
NAME AND DESCRIPTION
Receive CAS Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
Receive Align Frame.
0 = interrupt masked.
1 = interrupt enabled.
Transmit Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
1-Second Timer.
0 = interrupt masked.
1 = interrupt enabled.
Transmit Align Frame.
0 = interrupt masked.
1 = interrupt enabled.
Loss Of Transmit Clock.
0 = interrupt masked.
1 = interrupt enabled.
Receive CRC4 Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
Loss of Receive Clock.
0 = interrupt masked.
1 = interrupt enabled.
SEC
21 of 44
TAF
LOTC
RCMF
DS2143/DS2143Q
LORC
(LSB)
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