TC1912 Datasheet, PDF (29/68 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1912
PRELIMINARY
The CAN module contains two Full-CAN nodes operating independently or exchanging
data and remote frames via a gateway function. Transmission and reception of CAN
frames is handled in accordance to CAN specification V2.0 part B (active). Each of the
two Full-CAN nodes can receive and transmit standard frames with 11-bit identifiers as
well as extended frames with 29-bit identifiers.
Both CAN nodes share the TwinCAN module’s resources in order to optimize the CAN
bus traffic handling and to minimize the CPU load. The flexible combination of Full-
functionality and FIFO architecture reduces the efforts to fulfill the real-time requirements
of complex embedded control applications. Improved CAN bus monitoring functionality
as well as the increased number of message objects permit precise and comfortable
CAN bus traffic handling.
Depending on the application, each of the 32 message objects can be individually
assigned to one of the two CAN nodes. Gateway functionality allows automatic data
exchange between two separate CAN bus systems, which reduces CPU load and
improves the real time behavior of the entire system.
The bit timings for both CAN nodes are derived from the peripheral clock (f_CAN) and are
programmable up to a data rate of 1 MBaud. A pair of receive and transmit pins connect
each CAN node to a bus transceiver.
Data Sheet
25
V 1.0, 2003-10