- 您现在的位置：买卖IC网 > PDF目录365348 > PC33889 (Motorola, Inc.) System Basis Chip Lite with Low Speed Fault Tolerant CAN Interface PDF资料下载
参数资料
| 型号： | PC33889 |
| 厂商： | Motorola, Inc. |
| 英文描述： | System Basis Chip Lite with Low Speed Fault Tolerant CAN Interface |
| 中文描述： | 建兴系统基础芯片低速容错CAN接口 |
| 文件页数： | 16/30页 |
| 文件大小： | 464K |
| 代理商： | PC33889 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页
PC33889
16
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
n
.
相关PDF资料 |
PDF描述 |
|---|---|
| PC33889DW | System Basis Chip Lite with Low Speed Fault Tolerant CAN Interface |
| PC33989DW | System Basis Chip with High Speed CAN Transceiver |
| PC33991R2 | Gauge Driver Integrated Circuit |
| PC33991DH | Gauge Driver Integrated Circuit |
| PC33999EK | 16-Output Switch with SPI and PWM Control |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PC33889DP1EG | 制造商:Freescale Semiconductor 功能描述: |
| PC33889DP1EGR2 | 制造商:Freescale Semiconductor 功能描述: |
| PC33889DPEG | 制造商:Freescale Semiconductor 功能描述: |
| PC33889DW | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:System Basis Chip Lite with Low Speed Fault Tolerant CAN Interface |
| PC33892PNC | 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Quad Intelligent High-Side Switch |
发布紧急采购，3分钟左右您将得到回复。