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參數(shù)資料
| 型號： | MC33889 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | System Basis Chip (SBC) with Low Speed Fault Tolerant CAN Interface |
| 中文描述： | 帶有低速CAN的精簡版系統(tǒng)基礎(chǔ)芯片 |
| 文件頁數(shù)： | 16/30頁 |
| 文件大?。?/td> | 464K |
| 代理商： | MC33889 |
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PC33889
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PC33889
external signal sources to zero or 5V and this without damage. This allow for instance to supply the complete application board by
external power supply and to apply the correct signal to reset pins.
4.17
Gnd Shift Detection
4.17.1
General
When normally working in two-wire operating mode, the CAN transmission can afford some ground shift between different
nodes without trouble. Nevertheless, in case of bus failure, the transceiver switches to single-wire operation, therefore working
with less noise margin. The affordable ground shift is decreased in this case.
The SBC provides a ground shift detection for diagnosis purpose. Four ground shift levels are selectable and the detection is
stored in the IOR register which is accessible via the SPI.
4.17.2
Detection Principle
The gnd shift to detect is selected via the SPI out of 4 different values (-0.5V, -1V, -1.5V, -2V). At each TX falling edge (end of
recessive state) CANH voltage is sensed. If it is detected to be below the selected gnd shift threshold, the bit SHIFT is set at 1 in
IOR register. No filter is implemented. Required filtering for reliable detection should be done by software (e.g. several trials).
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC33889BDW | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC LIGHT PASS 3.3 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 |
| MC33889BDWR2 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC LIGHT PASS 3.3 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 |
| MC33889BPEG | 制造商:Freescale Semiconductor 功能描述:SYSTEM BASIS CHIP WITH LOW SPEED FAULT TOLERANT CAN INTERFACE 制造商:Freescale Semiconductor 功能描述:SBC-LITE-LS-CAN - Bulk 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/CAN 28SOIC |
| MC33889BPEGR2 | 制造商:Freescale Semiconductor 功能描述:CAN 125Kbps Sleep/Stop 9V/12V/15V T/R 制造商:Freescale Semiconductor 功能描述:SBC-LITE-LS-CAN - Tape and Reel 制造商:Freescale Semiconductor 功能描述:IC SYSTEM BASIS W/CAN 28SOIC |
| MC33889DDW | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC SBC LIGHT REV D 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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