参数资料
型号: DS2143QN+
厂商: Maxim Integrated Products
文件页数: 14/44页
文件大小: 0K
描述: IC CONTROLLER E1 5V LP 44-PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 26
控制器类型: E1 控制器
接口: 并行/串行
电源电压: 4.5 V ~ 5.5 V
电流 - 电源: 10mA
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 管件
产品目录页面: 1429 (CN2011-ZH PDF)
DS2143/DS2143Q
21 of 44
IMR2: INTERRUPT MASK REGISTER 2 (Address=17 Hex)
(MSB)
(LSB)
RMF
RAF
TMF
SEC
TAF
LOTC
RCMF
LORC
SYMBOL
POSITION
NAME AND DESCRIPTION
RMF
IMR2.7
Receive CAS Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
RAF
IMR2.6
Receive Align Frame.
0 = interrupt masked.
1 = interrupt enabled.
TMF
IMR2.5
Transmit Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
SEC
IMR2.4
1-Second Timer.
0 = interrupt masked.
1 = interrupt enabled.
TAF
IMR2.3
Transmit Align Frame.
0 = interrupt masked.
1 = interrupt enabled.
LOTC
IMR2.2
Loss Of Transmit Clock.
0 = interrupt masked.
1 = interrupt enabled.
RCMF
IMR2.1
Receive CRC4 Multiframe.
0 = interrupt masked.
1 = interrupt enabled.
LORC
IMR2.0
Loss of Receive Clock.
0 = interrupt masked.
1 = interrupt enabled.
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.
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