MCP2515
FIGURE 12-8:
CS
READ STATUS INSTRUCTION
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
SCK
Instruction
SI
1
0
1
0
0
0
0
0
Don’t Care
High-Impedance
Data Out
Repeat
Data Out
SO
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CANINTF.RX0IF
CANINTFL.RX1IF
TXB0CNTRL.TXREQ
CANINTF.TX0IF
TXB1CNTRL.TXREQ
CANINTF.TX1IF
TXB2CNTRL.TXREQ
CANINTF.TX2IF
FIGURE 12-9:
CS
RX STATUS INSTRUCTION
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23
SCK
Instruction
SI
1
0
1
1
0
0
0
0
Don’t Care
High-Impedance
Data Out
Repeat
Data Out
SO
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
6
Received Message
4
3
Msg Type Received
2
1 0
Filter Match
0
0
1
1
0 No RX message
1 Message in RXB0
0 Message in RXB1
1 Messages in both buffers*
0 0 Standard data frame
0 1 Standard remote frame
1 0 Extended data frame
1 1 Extended remote frame
0 0 0 RXF0
0 0 1 RXF1
0 1 0 RXF2
0 1 1 RXF3
CANINTF.RXnIF bits are mapped to
bits 7 and 6.
The extended ID bit is mapped to
bit 4. The RTR bit is mapped to
bit 3.
1 0 0 RXF4
1 0 1 RXF5
1 1 0 RXF0 (rollover to RXB1)
* Buffer 0 has higher priority, therefore, RXB0 status is
reflected in bits 4:0.
? 2003-2012 Microchip Technology Inc.
1 1 1 RXF1 (rollover to RXB1)
DS21801G-page 69
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相关代理商/技术参数
MCP2515-E 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface
MCP2515-E/ML 制造商:Microchip Technology Inc 功能描述:
MCP2515-E/P 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
MCP2515-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
MCP2515-E/SORB4 制造商:Microchip Technology Inc 功能描述:
MCP2515-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
MCP2515-I 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface
MCP2515-I/ML 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface