参数资料
型号: MCP25050-I/SL
厂商: Microchip Technology
文件页数: 45/66页
文件大小: 0K
描述: IC I/O EXPANDER CAN 8B 14SOIC
标准包装: 57
接口: CAN
输入/输出数: 8
中断输出:
频率 - 时钟: 4MHz
电源电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 管件
包括: ADC,存储器,PWM
产品目录页面: 685 (CN2011-ZH PDF)
其它名称: MCP25050I/SL
2007 Microchip Technology Inc.
DS21664D-page 5
MCP2502X/5X
2.0
CAN MODULE
The CAN module is a protocol controller that converts
between raw digital data and CAN message packets.
The main functional block of the CAN module is shown
in Figure 2-1 and consists of:
CAN protocol engine
Buffers, masks and filters
The module features include:
Implementation of the CAN protocol
Double-buffered receiver with two separate
receive buffers
One full-acceptance mask (standard and
extended)
Two full-acceptance filters (standard and
extended)
One filter for each receive buffer
Three prioritized transmit buffers for transmitting
predefined message types
Automatic wake-up on bus traffic function
Error management logic for transmit and receive
error states
Low-power SLEEP mode
FIGURE 2-1:
CAN MODULE
Acceptance Filter
RXF1
R
X
B
1
Identifier
Data Field
Identifier
M
A
B
Acceptance Mask
RXM
Acceptance Filter
RXF0
R
X
B
0
TXREQ
TXB2
ABTF
ML
OA
TXERR
M
ESSAGE
Message
Queue
Control
Transmit Byte Sequencer
TXREQ
TXB0
ABTF
ML
OA
TXERR
M
ESSAGE
CRC<14:0>
Comparator
Receive<7:0>
Transmit<7:0>
Receive
Error
Transmit
Error
Protocol
REC
TEC
ErrPas
BusOff
Finite
State
Machine
Counter
Shift<14:0>
{Transmit<5:0>, Receive<8:0>}
Transmit
Logic
Bit
Timing
Logic
TXCAN/TXRXCAN
RXCAN
Configuration
Registers
Clock
Generator
PROTOCOL
ENGINE
BUFFERS
TXREQ
TXB1
ABTF
ML
OA
TXERR
M
ESSAGE
A
c
e
p
t
A
c
e
p
t
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