XC161 Datasheet, PDF (282/419 Pages) Infineon Technologies AG – 16-Bit Single-Chip Microcontroller with C166SV2 Core Volume 2 (of 2): Peripheral Units

XC161 Derivatives
Peripheral Units (Vol. 2 of 2)
TwinCAN Module
Power Up
Message Initialization
(all bits written with reset values)
MSGVAL = ‘01’
INTPND := ‘01’
RMTPND := ‘01’
TXRQ := ‘01’
NEWDAT := ‘01’
DIR := ‘1’ (transmit object)
Identifier := (application specific)
XTD := (application specific)
TXIE := (application specific)
RXIE := (application specific)
CPUUPD := ‘10’
MSGVAL := ‘10’
Update : Start
Update
Update : End
CPUUPD := ‘10’
NEWDAT := ‘10’
Write / Calculate Message Contents
CPUUPD := ‘01’
yes
TXRQ := ‘10’
Want to Send
?
no
‘01’ : Reset
‘10’ : Set
no _{Update Message} yes
?
MCA05493
Figure 21-23 CPU Handling of Message Objects with Direction = Transmit
User’s Manual
TwinCAN_X1, V2.1
21-42
V2.2, 2004-01