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參數(shù)資料
| 型號(hào)： | MCP2515T-I/ST |
| 廠商： | Microchip Technology |
| 文件頁(yè)數(shù)： | 45/88頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC CAN CONTROLLER W/SPI 20TSSOP |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 控制器類型： | CAN 接口 |
| 接口： | SPI 串行 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 電流 - 電源： | 10mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-TSSOP（0.173"，4.40mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 20-TSSOP |
| 包裝： | 帶卷 (TR) |
| 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 |
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2010 Microchip Technology Inc.
DS21801F-page 5
MCP2515
1.4
Transmit/Receive Buffers/Masks/
Filters
The MCP2515 has three transmit and two receive
buffers, two acceptance masks (one for each receive
buffer) and a total of six acceptance filters. Figure 1-3
shows a block diagram of these buffers and their
connection to the protocol engine.
FIGURE 1-3:
CAN BUFFERS AND PROTOCOL ENGINE BLOCK DIAGRAM
Acceptance Filter
RXF2
R
X
B
1
Identifier
Data Field
Identifier
Acceptance Mask
RXM1
Acceptance Filter
RXF3
Acceptance Filter
RXF4
Acceptance Filter
RXF5
M
A
B
Acceptance Filter
RXF0
Acceptance Filter
RXF1
R
X
B
0
TXR
E
Q
TXB2
AB
TF
ML
O
A
TXE
R
ME
SS
AGE
Message
Queue
Control
Transmit Byte Sequencer
TXR
E
Q
TXB0
AB
TF
ML
O
A
TXE
R
ME
SS
AGE
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
TX
RX
Configuration
Registers
Clock
Generator
PROTOCOL
ENGINE
BUFFERS
TXR
E
Q
TXB1
AB
TF
ML
O
A
TXE
R
ME
SS
AGE
Acceptance Mask
RXM0
A
c
e
p
t
A
c
e
p
t
SOF
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