MCP2515-E/PRB2 Microchip Technology, MCP2515-E/PRB2 Datasheet - Page 26
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MCP2515-E/PRB2
Manufacturer Part Number
MCP2515-E/PRB2
Description
CAN controller with SPI interface, 125 deg C, -40C to +125C, 18-PDIP, TUBE
Manufacturer
Microchip Technology
Datasheet
1.MCP2515-EPRB2.pdf
(84 pages)
- Current page: 26 of 84
- Download datasheet (486Kb)
MCP2515
FIGURE 4-3:
DS21801E-page 26
according to which filter criteria
Set RXB0CTRL.FILHIT <0>
Move message into RXB0
Set CANINTF.RX0IF =
BF1CTRL.B0BFE =
CANINTE.RX0IE =
BFPCTRL.B0BFM =
CANINTF.RX0IF =
Yes
No
and
Are
Is
RECEIVE FLOW FLOWCHART
No
Determines if the receive
register is empty and able
to accept a new message
0
1
1
1
?
?
?
1
No
Yes
Yes
Generate Overflow Error:
RXB0CTRL.BUKT =
Generate
Frame
Error
Set EFLG.RX0OVR
Set RXBF0
RXB0
Pin =
0
Is
Determines if RXB0 can roll
over into RXB1, if it is full.
No
Set CANSTAT <3:0> accord-
ing to which receive buffer
the message was loaded into
Message Assembly Buffer (MAB)
Yes
No
Begin Loading Message into
CANINTE.ERRIE =
No
Interrupt on INT
Interrupt on INT
1
Yes
Generate
Generate
?
a filter criteria
Message?
Received?
for RXB0?
Message
Is
Start of
Yes
Detect
Meets
Valid
Start
Generate Overflow Error:
Yes
Yes
Set EFLG.RX1OVR
1
?
No
No
Go to Start
Set RXBF1
RXB1
Pin =
a filter criteria
0
Go to Start
for RXB1?
Meets
Yes
No
No
Yes
according to which filter criteria
© 2007 Microchip Technology Inc.
Set RXB0CTRL.FILHIT <2:0>
Move message into RXB1
Set CANINTF.RX1IF = 1
BF1CTRL.B1BFE =
CANINTE.RX1IE =
BFPCTRL.B1BFM =
CANINTF.RX1IF =
Yes
Yes
was met
and
Are
Is
No
No
1
0
1
1
?
?
?
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