C515C_9711 Datasheet, PDF (161/268 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C515C
Yes
bus free
No
?
No
TXRQ = 1
CPUUPD = 0
Yes
NEWDAT: = 1
load message
into buffer
send message
received remote frame
with same identifier as
No
this message object
?
Yes
TXRQ: = 1
RMTPND: = 1
No
transmission
successful
?
Yes
NEWDAT = 1
No
Yes
TXRQ: = 1
RMTPND: = 1
RXIE = 1
No
Yes
INTPND: = 1
No
TXIE =1
Yes
INTPND: = 1
0:reset
1:set
MCD02739
Figure 6-44
CAN Controller Handling of Message Objects with Direction = transmit
Semiconductor Group
6-98
1997-11-01