- 您现在的位置：买卖IC网 > PDF目录11581 > MCP2510T-I/ST (Microchip Technology)IC CAN CONTROLLER W/SPI 20-TSSOP PDF资料下载
参数资料
| 型号： | MCP2510T-I/ST |
| 厂商： | Microchip Technology |
| 文件页数： | 40/80页 |
| 文件大小： | 0K |
| 描述： | IC CAN CONTROLLER W/SPI 20-TSSOP |
| 标准包装： | 2,500 |
| 控制器类型： | CAN 接口 |
| 接口： | SPI |
| 电源电压： | 3 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： | 带卷 (TR) |
| 配用： | 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页当前第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
2007 Microchip Technology Inc.
DS21291F-page 45
MCP2510
7.0
INTERRUPTS
The device has eight sources of interrupts. The CAN-
INTE register contains the individual interrupt enable
bits for each interrupt source. The CANINTF register
contains the corresponding interrupt flag bit for each
interrupt source. When an interrupt occurs the INT pin
is driven low by the MCP2510 and will remain low until
the Interrupt is cleared by the MCU. An Interrupt can
not be cleared if the respective condition still prevails.
It is recommended that the bit modify command be
used to reset flag bits in the CANINTF register rather
than normal write operations. This is to prevent unin-
tentionally changing a flag that changes during the
write command, potentially causing an interrupt to be
missed.
It should be noted that the CANINTF flags are read/
write and an Interrupt can be generated by the MCU
setting any of these bits, provided the associated CAN-
INTE bit is also set.
7.1
Interrupt Code Bits
The source of a pending interrupt is indicated in the
CANSTAT.ICOD (interrupt code) bits as indicated in
Register 9-2. In the event that multiple interrupts occur,
the INT will remain low until all interrupts have been
reset by the MCU, and the CANSTAT.ICOD bits will
reflect the code for the highest priority interrupt that is
currently pending. Interrupts are internally prioritized
such that the lower the ICOD value the higher the inter-
rupt priority. Once the highest priority interrupt condi-
tion has been cleared, the code for the next highest
priority interrupt that is pending (if any) will be reflected
by the ICOD bits (see Table 7-1). Note that only those
interrupt sources that have their associated CANINTE
enable bit set will be reflected in the ICOD bits.
TABLE 7-1:
ICOD<2:0> DECODE
7.2
Transmit Interrupt
When the Transmit Interrupt is enabled (CAN-
INTE.TXNIE = 1) an Interrupt will be generated on the
INT pin when the associated transmit buffer becomes
empty and is ready to be loaded with a new message.
The CANINTF.TXNIF bit will be set to indicate the
source of the interrupt. The interrupt is cleared by the
MCU resetting the TXNIF bit to a ‘0’.
7.3
Receive Interrupt
When
the
Receive
Interrupt
is
enabled
(CAN-
INTE.RXNIE = 1) an interrupt will be generated on the
INT pin when a message has been successfully
received and loaded into the associated receive buffer.
This interrupt is activated immediately after receiving
the EOF field. The CANINTF.RXNIF bit will be set to
indicate the source of the interrupt. The interrupt is
cleared by the MCU resetting the RXNIF bit to a ‘0’.
7.4
Message Error Interrupt
When an error occurs during transmission or reception
of
a
message
the
message
error
flag
(CAN-
INTF.MERRF) will be set and, if the CANINTE.MERRE
bit is set, an interrupt will be generated on the INT pin.
This is intended to be used to facilitate baud rate deter-
mination when used in conjunction with listen-only
mode.
7.5
Bus Activity Wakeup Interrupt
When the MCP2510 is in sleep mode and the bus activ-
ity wakeup interrupt is enabled (CANINTE.WAKIE = 1),
an interrupt will be generated on the INT pin, and the
CANINTF.WAKIF bit will be set when activity is
detected on the CAN bus. This interrupt causes the
MCP2510 to exit sleep mode. The interrupt is reset by
the MCU clearing the WAKIF bit.
ICOD<2:0>
Boolean Expression
000
ERRWAKTX0TX1TX2RX0RX1
001
ERR
010
ERRWAK
011
ERRWAKTX0
100
ERRWAKTX0TX1
101
ERRWAKTX0TX1TX2
110
ERRWAKTX0TX1TX2RX0
111
ERRWAKTX0TX1TX2RX0RX1
相关PDF资料 |
PDF描述 |
|---|---|
| VI-JNL-IW-F3 | CONVERTER MOD DC/DC 28V 100W |
| VI-JNL-IW-F1 | CONVERTER MOD DC/DC 28V 100W |
| VI-JNK-IW-F3 | CONVERTER MOD DC/DC 40V 100W |
| VI-JNJ-IW-F2 | CONVERTER MOD DC/DC 36V 100W |
| ENC28J60T-I/ML | IC ETHERNET CTRLR W/SPI 28-QFN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MCP2515 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller With SPI Interface |
| MCP2515_12 | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:Stand-Alone CAN Controller with SPI Interface |
| MCP2515DM-BM | 功能描述:网络开发工具 CAN Bus Monitor Demo Board RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| MCP2515DM-PCTL | 功能描述:网络开发工具 MCP2515 CAN Cont PICtail Demo Brd RoHS:否 制造商:Rabbit Semiconductor 产品:Development Kits 类型:Ethernet to Wi-Fi Bridges 工具用于评估:RCM6600W 数据速率:20 Mbps, 40 Mbps 接口类型:802.11 b/g, Ethernet 工作电源电压:3.3 V |
| MCP2515DM-PTPLS | 功能描述:子卡和OEM板 MCP2515 PICTail Plus Daughtr Brd RoHS:否 制造商:BeagleBoard by CircuitCo 产品:BeagleBone LCD4 Boards 用于:BeagleBone - BB-Bone - Open Source Development Kit |
发布紧急采购，3分钟左右您将得到回复。