Infineon Technologies TC1796 - Page 1341

TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-46 V2.0, 2007-07
MultiCAN, V2.0
Figure 22-19 Reception of a Message Object
MCA05845
Object wins
acc. filtering?
yes
yes
no
no
CAN rec.
successful?
MSGVAL &
RTSEL =1?
MSGVAL =1?
DIR =1?
NEWDAT =1?
RXIE =1?
RTSEL := 1
RXUPD := 1
Copy frame to
message object
TXRQ := 1 in this
or in foreign objects
Copy frame to
message object
RXUPD := 1
MSGLST := 1
yes
NEWDAT := 1
RXUPD := 0
RXPND := 1
no
no
yes
yes
no
yes
MSGLST := 1
no
yes
1
2
3
4
no
Time
Milestones
Get data from
gateway/FIFO source
Start receiving
CAN frame
Done