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MCP2510T-I/ST 其他数据使用手册 - Microchip（微芯）
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Microchip（微芯）
分类:
CAN芯片
封装:
TSSOP-20
描述:
CAN芯片 MCP2510T-I/ST TSSOP-20
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MCP2510T-I/ST数据手册
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© 2007 Microchip Technology Inc. DS21291F-page 5
MCP2510
1.2 Transmit/Receive Buffers
The MCP2510 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 is 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 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
TXREQ
TXB2
ABTF
MLOA
TXERR
MESSAGE
Message
Queue
Control
Transmit Byte Sequencer
TXREQ
TXB0
ABTF
MLOA
TXERR
MESSAGE
CRC<14:0>
Comparator
Receive<7:0>Transmit<7:0>
Receive
Error
Transmit
Error
Protocol
REC
TEC
ErrPas
BusOff
Finite
State
Machine
Counter
Counter
Shift<14:0>
{Transmit<5:0>, Receive<8:0>}
Transmit
Logic
Bit
Timing
Logic
TX RX
Configuration
Registers
Clock
Generator
PROTOCOL
ENGINE
BUFFERS
TXREQ
TXB1
ABTF
MLOA
TXERR
MESSAGE
Acceptance Mask
RXM0
A
c
c
e
p
t
A
c
c
e
p
t
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