- 您现在的位置：买卖IC网 > PDF目录11599 > MCP2515-I/ST (Microchip Technology)IC CAN CONTROLLER W/SPI 20TSSOP PDF资料下载
参数资料
| 型号： | MCP2515-I/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 17/88页 |
| 文件大小： | 0K |
| 描述： | IC CAN CONTROLLER W/SPI 20TSSOP |
| 产品培训模块： | CAN Bus Protection |
| 标准包装： | 74 |
| 控制器类型： | CAN 接口 |
| 接口： | SPI 串行 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 10mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 产品目录页面： | 685 (CN2011-ZH PDF) |
| 配用： | MCP2515DM-BM-ND - BOARD DEMO FOR MCP2515/51 MCP2515DM-PTPLS-ND - BOARD DAUGHTER PICTAIL MCP2515 MCP2515DM-PCTL-ND - BOARD DEMO FOR MCP2515 DV251001-ND - KIT DEVELOPMENT CAN MCP2510 |
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页第16页当前第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页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页
MCP2515
DS21801F-page 24
2010 Microchip Technology Inc.
4.3
Start-of-Frame Signal
If enabled, the Start-Of-Frame signal is generated on
the SOF pin at the beginning of each CAN message
detected on the RXCAN pin.
The RXCAN pin monitors an idle bus for a recessive-
to-dominant edge. If the dominant condition remains
until the sample point, the DSTEMP interprets this as a
SOF and a SOF pulse is generated. If the dominant
condition does not remain until the sample point, the
DSTEMP interprets this as a glitch on the bus and no
SOF signal is generated. Figure 4-1 illustrates SOF
signalling and glitch-filtering.
As with One-shot mode, one use for SOF signaling is
for TTCAN-type systems. In addition, by monitoring
both the RXCAN pin and the SOF pin, an MCU can
detect early physical bus problems by detecting small
glitches before they affect the CAN communications.
4.4
RX0BF and RX1BF Pins
In addition to the INT pin, which provides an interrupt
signal to the MCU for many different conditions, the
receive buffer full pins (RX0BF and RX1BF) can be
used to indicate that a valid message has been loaded
into RXB0 or RXB1, respectively. The pins have three
different configurations (Register 4-1):
1.
Disabled
2.
Buffer Full Interrupt
3.
Digital Output
4.4.1
DISABLED
The RXBnBF pins can be disabled to the high-
impedance state by clearing BFPCTRL.BnBFE.
4.4.2
CONFIGURED AS BUFFER FULL
The RXBnBF pins can be configured to act as either
buffer full interrupt pins or as standard digital outputs.
Configuration and status of these pins is available via
the BFPCTRL register (Register 4-3). When set to
operate in Interrupt mode (by setting BFPCTRL.BxBFE
and BFPCTRL.BxBFM bits), these pins are active-low
and are mapped to the CANINTF.RXnIF bit for each
receive buffer. When this bit goes high for one of the
receive buffers (indicating that a valid message has
been loaded into the buffer), the corresponding
RXBnBF pin will go low. When the CANINTF.RXnIF bit
is cleared by the MCU, the corresponding interrupt pin
will go to the logic-high state until the next message is
loaded into the receive buffer.
FIGURE 4-1:
START-OF-FRAME SIGNALING
START-OF-FRAME BIT
Sample
Point
ID BIT
RXCAN
SOF
EXPECTED START-OF-FRAME BIT
Sample
Point
BUS IDLE
RXCAN
SOF
Expected
Normal SOF Signaling
Glitch-Filtering
相关PDF资料 |
PDF描述 |
|---|---|
| PIC16LF1902-E/SP | MCU 3.5KB FLASH 128B RAM 28SPDIP |
| PIC16LF1825T-I/ML | MCU PIC 14KB FLASH 16-QFN |
| PIC16F720-E/P | MCU PIC 3.5KB FLASH 128B 20PDIP |
| MCP2515T-I/ML | IC CAN CTLR W/SPI 2.0B 20-QFN |
| PIC16F1825T-I/ML | MCU PIC 14K FLASH 1K RAM 16QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2515T | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface |
| MCP2515T-E/ML | 功能描述:网络控制器与处理器 IC CAN controller with SPI interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2515T-E/SO | 功能描述:网络控制器与处理器 IC W/ SPI Inter 125dC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2515T-E/ST | 功能描述:网络控制器与处理器 IC W/ SPI Inter 125dC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| MCP2515T-I/M | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface |
发布紧急采购，3分钟左右您将得到回复。