參數(shù)資料
型號(hào): DS2143Q/T&R
廠(chǎng)商: Maxim Integrated Products
文件頁(yè)數(shù): 14/44頁(yè)
文件大小: 0K
描述: IC CONTROLLER E1 5V LP 44-PLCC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 500
控制器類(lèi)型: E1 控制器
接口: 并行/串行
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 10mA
工作溫度: 0°C ~ 70°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線(xiàn))
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 帶卷 (TR)
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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