C515C_9711 Datasheet, PDF (164/268 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C515C
Power Up
Initialization
(all bits undefined)
TXIE: = (application specific)
RXIE: = (application specific)
INTPND: = 0
RMTPND: = 0
TXRQ: = 0
MSGLST: = 0
Identifier: = (application specific)
NEWDAT: = 0
Direction: = receive
DLC: = (value of DLC in transmitter)
MSGVAL: = 1
XTD: = (application specific)
Process:Start
Process
NEWDAT: = 0
process message contents
Process:End
0:reset
1:set
NEWDAT = 1
?
No
Yes
Restart Process
No
request update
?
Yes
TXRQ: = 1
MCD02742
Figure 6-47
Microcontroller Handling of Message Objects with Direction = receive
Semiconductor Group
6-101
1997-11-01