SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 338

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

19
The Controller Area Network (CAN) bus and its associated protocol allow highly efficient
communication among a number of stations connected to this bus.
Efficiency in this context refers to:
• Transfer speed (Data rates of up to 1 Mbit/s can be achieved)
• Data integrity (The CAN protocol provides several means of error checking)
• Host processor unloading (The controller handles most of the tasks autonomously)
• Flexible and powerful message passing (The extended CAN protocol is supported)
The integrated CAN module handles the completely autonomous transmission and
reception of CAN frames in accordance with the CAN specification V2.0 part B (active).
Because of this, the on-chip CAN module can receive and transmit:
• Standard frames with 11-bit identifiers, as well as
• Extended frames with 29-bit identifiers.
Note: The CAN module is an XBUS peripheral and, therefore, requires bit XPEN in
Figure 19-1 Registers Associated with the CAN Module
User’s Manual
SYSCON
SYSCON3 Peripheral Management Control Reg.
DP8
ODP8
XP0IC
SYSCON
SYSCON3
DP8
ODP8
register SYSCON to be set in order to be operable.
Core Registers
On-Chip CAN Interface
System Configuration Register
Port 8 Direction Control Register
Port 8 Open Drain Control Register
CAN1 Interrupt Control Register
E
E
(within each module)
Control Registers
CSR
PCIR
BTR
GMS
U/LGML
U/LMLM
X
X
X
X
X
X
19-1
(within each module)
CSR
PCIR
BTR
GMS
U/LGML Global Mask Long
U/LMLM Last Message Mask
MCRn
U/LARn
Object Registers
MCRn
UARn
LARn
Data
Control / Status Register
Port Control / Interrupt Register
Bit Timing Register
Global Mask Short
Configuration Register of Message n
Arbitration Register of Message n
X
X
X
X
On-Chip CAN Interface
C164CM/C164SM
XP0IC
Interrupt Control
Derivatives
V1.0, 2002-02
MCA05126
E