SAK-TC1197-256F180E INFINEON [Infineon Technologies AG], SAK-TC1197-256F180E Datasheet - Page 43

• Manufacturer Part Number: SAK-TC1197-256F180E
• Description: 32-Bit Single-Chip Microcontroller
• Manufacturer: INFINEON [Infineon Technologies AG]

2.5.4
The MultiCAN module provides four independent CAN nodes, representing four serial
communication interfaces. The number of available message objects is 128.
Figure 8
The MultiCAN module contains four independently operating CAN nodes with Full-CAN
functionality that are able to exchange Data and Remote Frames via a gateway function.
Transmission and reception of CAN frames is handled in accordance to 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 four 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.
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 the message object list of the CAN node, and it transmits
only messages belonging to this message object list. A powerful, command-driven list
controller performs all message object list operations.
The bit timings for the CAN nodes are derived from the module timer clock (
programmable up to a data rate of 1 Mbit/s. External bus transceivers are connected to
a CAN node via a pair of receive and transmit pins.
Data Sheet
Address
Decoder
Interrupt
Control
Control
Clock
MultiCAN Controller
f
f
Overview of the MultiCAN Module
CAN
CLC
Message
Objects
Object
Buffer
128
CAN Control
MultiCAN Module Kernel
Control
Linked
List
39
Node 3
Node 2
Node 1
Node 0
CAN
CAN
CAN
CAN
TXDC3
TXDC2
TXDC1
TXDC0
RXDC3
RXDC2
RXDC1
RXDC0
Control
Port
Introduction
MCA06060_N4
f
V1.1, 2009-05
CAN
TC1197
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