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no
no
no
message object
Figure 20-18 Reception of a Message Object
User's Manual
MultiCAN, V2.24
Start receiving
CAN frame
Object wins
acc. Filtering ?
yes
RTSEL := 1
CAN rec.
successful ?
yes
MSGVAL &
RTSEL = 1?
yes
RXUPD := 1
Copy frame to
yes
DIR = 1?
no
yes
NEWDAT = 1?
no
NEWDAT := 1
RXUPD := 0
RXPND := 1
yes
RXIE = 1?
no
Done
Controller Area Network Controller (MultiCAN)
Get data from
gateway/FIFO source
MSGVAL = 1?
Copy frame to
message object
TXRQ := 1 in this
or in foreign objects
MSGLST := 1
Interrupt Generated
20-44
no
yes
RXUPD := 1
MCA06275
TC1728
Time
Milestones
1
2
3
4
V1.0, 2011-12
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