MPC564EVB Freescale Semiconductor, MPC564EVB Datasheet - Page 695

• Manufacturer Part Number: MPC564EVB
• Description: KIT EVAL FOR MPC561/562/563/564
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC564EVB

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC56x
• Data Bus Width: 32 bit
• Interface Type: RS-232, Ethernet
• For Use With/related Products: MPC561, 562, 563, 564
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Chapter 16
CAN 2.0B Controller Module
The MPC561/MPC563 contains three CAN 2.0B controller modules (TouCAN). Each TouCAN is a
communication controller that implements the Controller Area Network (CAN) protocol, an asynchronous
communications protocol used in automotive and industrial control systems. It is a high speed (one
Mbit/sec), short distance, priority based protocol that can run over a variety of mediums (for example, fiber
optic cable or an unshielded twisted pair of wires). The TouCAN supports both the standard and extended
identifier (ID) message formats specified in the CAN protocol specification, revision 2.0, part B. The third
TouCAN has its signals muxed with MIOS14 GPIO or QSMCM SCI2 signals. These signals are
configured as GPIO inputs at reset and must be changed to TouCAN signals in the MIOS before enabling
the TouCAN.
Each TouCAN module contains 16 message buffers that are used for transmit and receive functions. It also
contains message filters, which are used to qualify the received message IDs when comparing them to the
receive buffer identifiers.
16.1
Each TouCAN module provides these features:
Freescale Semiconductor
•
Full implementation of CAN protocol specification, version 2.0 A/B
— Standard data and remote frames (up to 109 bits long)
— Extended data and remote frames (up to 127 bits long)
Features
Figure 16-1
MPC561/MPC563 Reference Manual, Rev. 1.2
Figure 16-1. TouCAN Block Diagram
Message
16 Rx/Tx
Buffers
shows a block diagram of a TouCAN module.
Interface Unit
Slave Bus
16-bit
Counter
Control
IMB
Transmitter
Receiver
CNTX0
CNRX0
16-1