MCP2510-E データシートの表示（PDF） - Microchip Technology
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MCP2510-E Datasheet PDF : 80 Pages
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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
BUFFERS
TXB0
TXB1
TXB2
Message
Queue
Control
Transmit Byte Sequencer
Acceptance Mask
A
RXM0
c
c Acceptance Filter
e
RXF0
p
t
Acceptance Filter
RXF1
Acceptance Mask
RXM1
Acceptance Filter
RXF2
Acceptance Filter
A
RXF3
c
c
Acceptance Filter e
RXF4
p
t
Acceptance Filter
RXF5
R
X
B
0
Identifier
M
A
Identifier
B
R
X
B
1
Data Field
Data Field
PROTOCOL
ENGINE
Transmit<7:0>
Receive<7:0>
Shift<14:0>
{Transmit<5:0>, Receive<8:0>}
Comparator
CRC<14:0>
Receive
Error
Counter
Transmit
Error
Counter
REC
TEC
ErrPas
BusOff
Protocol
Finite
State
Machine
Transmit
Logic
TX
Bit
Timing
Logic
RX
Clock
Generator
Configuration
Registers
© 2007 Microchip Technology Inc.
DS21291F-page 5
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