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參數(shù)資料
| 型號： | DS2180A |
| 英文描述： | T1 Transceiver |
| 中文描述： | T1收發(fā)器 |
| 文件頁數(shù)： | 14/35頁 |
| 文件大?。?/td> | 481K |
| 代理商： | DS2180A |
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DS2180A
14 of 35
RECEIVE CONTROL REGISTER
Figure 12
(MSB)
ARC
OOF
(LSB)
RESYNC
RCI
RCS
SYNCC
SYNCT
SYNCE
SYMBOL
ARC
POSITION
RCR.7
NAME AND DESCRIPTION
Auto Resync Criteria.
0 = Resync on OOF or RCL event.
1 = Resync on OOF only.
Out-of-frame (OOF) Condition Detection.
0 = 2 of 4 framing bits in error.
1 = 2 of 5 framing bits in error.
Receive Code Insert. When set, the receive code selected by
RCR.4 is inserted into channels marked by RMR registers. If clear,
no code is inserted.
Receive Code Select.
0 = Idle code (7F Hex).
1 = Digital milliwatt.
Sync Criteria. Determines the type of algorithm utilized by the
receive synchronizer and differs for each frame mode.
193S Framing (CCR.4=0).
0 = Synchronize to frame boundaries using F
T
pattern, then search
for multiframe by using F
S
.
1 = Cross couple F
T
and F
S
patterns in sync algorithm.
193E Framing (CCR.4=1).
0 = Normal sync (utilizes FPS only).
1 = Validate new alignment with CRC before declaring sync.
Sync Time. If set, 24 consecutive F-bits of the framing pattern
must be qualified before sync is declared. If clear, 10 bits are
qualified.
Sync Enable. If clear, the transceiver will automatically begin a
resync if two of the previous four or five framing bits were in error
or if carrier loss is detected. If set, no auto resync occurs.
Resync. When toggled low to high, the transceiver will initiate
resync immediately. The bit must be cleared, then set again for
subsequent resyncs.
OOF
RCR.6
RCI
RCR.5
RCS
RCR.4
SYNCC
RCR.3
SYNCT
RCR.2
SYNCE
RCR.1
RESYNC
RCR.0
RECEIVE CODE INSERTION
Incoming receive channels can be replaced with idle (7F Hex) or digital milliwatt (
μ
-LAW format) codes.
The receive mark registers indicate which channels are inserted. When set, bit RCR.5 serves as a
“global” enable for marked channels and bit RCR.4 selects inserted code format: 0 = idle code, 1 = digital
milliwatt.
RECEIVE SYNCHRONIZER
Bits RCR.0 through RCR.3 allow the user to control operational characteristics of the synchronizer. Sync
algorithm, candidate qualify testing, auto resync, and command resync modes may be altered at any time
in response to changing span conditions.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS2180A+ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Transceiver 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 |
| DS2180AN | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC T1 Transceiver 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 |
| DS2180AQ | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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 |
| DS2180AQ/T&R | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER-PLCC-TRL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC TRANSCEIVER T1 44-PLCC 制造商:Maxim Integrated Products 功能描述:Network Controller & Processor ICs T1 Transceiver |
| DS2180AQ/T&R+ | 制造商:Maxim Integrated Products 功能描述:T1 TRANSCEIVER PLCC TRL LF - Tape and Reel |
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