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參數(shù)資料
| 型號： | TSS461F |
| 廠商： | Atmel Corp. |
| 英文描述： | VAN Data Link Controller |
| 中文描述： | 凡數(shù)據鏈路控制器 |
| 文件頁數(shù)： | 11/57頁 |
| 文件大?。?/td> | 397K |
| 代理商： | TSS461F |
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11
7615A–AUTO–02/06
TSS461F
VAN Protocol
Line Interface
There are three line inputs and one line output available on the TSS461F. Each of the three
inputs to use is either programmed by software or automatically selected by a diagnosis system.
The diagnosis system continuously monitors the data received through the three inputs, and
compares them and the selected bitrate. It then chooses the most reliable input according to the
results.
The data on the line is encoded according to the VAN standard ISO/11519-3. This means that
the TSS461F is using a two-level signal having a recessive (1) and a dominant (0) state. Fur-
thermore, due to the simple medium used, all data transmitted on the bus is also received
simultaneously.
Consequently, the VAN protocol is a CSMA/CD (Carrier Sense Multiple Access/Collision Detec-
tion) protocol, allowing for continuous bitwise arbitration of the bus, and non-destructive (for the
higher priority message) collision detection.
Figure 5.
CSMA/CD Arbitration
In addition to the VAN specification there is also a pulsed coding of the dominant and recessive
states. This mode is intended to be used with an optical or radio link. In this mode, the dominant
state for the transmitter is a low pulse, (2x prescaled clocks at the beginning of the bit) and the
recessive state is just a high level.
When receiving in this mode, it is not the state of the signal which is decoded, but the edges.
Also, reception is imposed on the RxD0 input, and the diagnosis system does not operate
correctly.
In addition, in this mode there is an internal loopback in the circuit since optical transceivers are
not able to receive the signal that they transmit.
Node a: TxD
Node a loses the arbitration
Node a releases the bus
Node b wins the arbitration
Node c loses the arbitration
Node c releases the bus
R
D
Node b: TxD
R
D
Node c: TxD
R
D
On Bus: DATA
R
D
Arbitration field
R: Recessive level
D: Dominant level
1
2
3
相關PDF資料 |
PDF描述 |
|---|---|
| TSS463-AAR | VAN Data Link Controller with Serial Interface |
| TSS463A-TERZ | VAN Data Link Controller with Serial Interface |
| TSS463C | VAN Data Link Controller with Serial Interface |
| TSS4B02G | Single Phase 4.0 Amps. Glass Passivated Super Fast Bridge Rectifiers |
| TSS4B03G | Single Phase 4.0 Amps. Glass Passivated Super Fast Bridge Rectifiers |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TSS461F-TDRZ-9 | 功能描述:網絡控制器與處理器 IC Van Data Link Controller RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| TSS461F-TDSZ-9 | 功能描述:網絡控制器與處理器 IC ASICS RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| TSS463 | 制造商:Atmel Corporation 功能描述:LAN Node Controller, 16 Pin, SOP 制造商:Temic 功能描述:LAN Node Controller, 16 Pin, SOP |
| TSS463-AA | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:TSS463-AA [Updated 3/03. 60 Pages] |
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