XC2234N INFINEON [Infineon Technologies AG], XC2234N Datasheet - Page 52

• Manufacturer Part Number: XC2234N
• Description: 16/32-Bit Single-Chip Microcontroller with 32-Bit Performance XC2000 Family / Value Line
• Manufacturer: INFINEON [Infineon Technologies AG]

3.13
The MultiCAN module contains independently operating CAN nodes with Full-CAN
functionality which are able to exchange Data and Remote Frames using a gateway
function. Transmission and reception of CAN frames is handled in accordance with CAN
specification V2.0 B (active). Each CAN node can receive and transmit standard frames
with 11-bit identifiers as well as extended frames with 29-bit identifiers.
All CAN nodes share a common set of message objects. Each message object can be
individually allocated to one of the CAN nodes. Besides serving as a storage container
for incoming and outgoing frames, message objects can be combined to build gateways
between the CAN nodes or to set up a FIFO buffer.
Note: The number of CAN nodes and message objects depends on the selected device
The message objects are organized in double-chained linked lists, where each CAN
node has its own list of message objects. A CAN node stores frames only into message
objects that are allocated to its own message object list and it transmits only messages
belonging to this message object list. A powerful, command-driven list controller
performs all message object list operations.
Figure 12
Data Sheet
Address
Decoder
Interrupt
Control
Control
Clock
type.
MultiCAN Module
Block Diagram of MultiCAN Module
f
CAN
Message
Object
Buffer
MultiCAN Module Kernel
CAN Control
Control
Linked
List
XC2232N, XC2234N, XC2236N, XC2238N
52
Node n
Node 0
CAN
CAN
XC2000 Family / Value Line
TXDCn
TXDC0
RXDCn
RXDC0
Functional Description
mc_multican_block.vsd
Control
Port
V1.3, 2010-04