參數(shù)資料
型號： DS21Q43AT
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PQFP128
封裝： TQFP-128
文件頁數(shù)： 21/60頁
文件大小： 748K
代理商： DS21Q43AT
DS21Q43A
28 of 60
IMR2: INTERRUPT MASK REGISTER 2 (Address=17 Hex)
(MSB)
(LSB)
RMF
RAF
TMF
SEC
TAF
LOTC
RCMF
TSLIP
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
TSLIP
IMR2.0
Transmit Side Elastic Store Slip.
0=interrupt masked
1=interrupt enabled
5.0 ERROR COUNT REGISTERS
There are a set of four counters in the DS21Q43A that record bipolar or code violations, errors in the
CRC4 SMF code words, E-bits as reported by the far end, and word errors in the FAS. Each of these four
counters are automatically updated on either 1-second boundaries (CCR2.7=0) or every 62.5 ms
(CCR2.7=1) as determined by the timer in Status Register 2 (SR2.4). Hence, these registers contain
performance data from either the previous second or the previous 100 ms. The user can use the interrupt
from the timer to determine when to read these registers. The user has a full second (or 62.5 ms) to read
the counters before the data is lost.
相關(guān)PDF資料
PDF描述
DS21Q44T DATACOM, FRAMER, PQFP128
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21Q43AT+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q43ATN 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Quad E1 Framer
DS21Q43-ATN 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Quad E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21Q44 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Enhanced QUAD E1 FRAMER
DS21Q44T 功能描述:網(wǎng)絡(luò)控制器與處理器 IC Enhanced Quad E1 Framer RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
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