sab-c161ji-lf Infineon Technologies Corporation, sab-c161ji-lf Datasheet - Page 37

• Manufacturer Part Number: sab-c161ji-lf
• Description: 16-bit Single-chip Microcontroller
• Manufacturer: Infineon Technologies Corporation

CAN-Modules
The integrated CAN-Modules handle the completely autonomous transmission and
reception of CAN frames in accordance with the CAN specification V2.0 part B (active),
i.e. the on-chip CAN-Modules can receive and transmit standard frames with 11-bit
identifiers as well as extended frames with 29-bit identifiers.
The modules provide Full CAN functionality on up to 15 message objects each.
Message object 15 may be configured for Basic CAN functionality. Both modes provide
separate masks for acceptance filtering which allows to accept a number of identifiers in
Full CAN mode and also allows to disregard a number of identifiers in Basic CAN mode.
All message objects can be updated independent from the other objects and are
equipped for the maximum message length of 8 bytes.
The bit timing is derived from the XCLK and is programmable up to a data rate of
1 MBaud. Each CAN-Module uses two pins of Port 4 or Port 8 to interface to an external
bus transceiver. The interface pins are assigned via software.
Module CAN2 (C161CS only) is identical with the first one, except that it uses a separate
address area and a separate interrupt node.
The two CAN modules can be internally coupled by assigning their interface pins to the
same two port pins, or they can interface to separate CAN buses.
Note: When one or both of the on-chip CAN Modules are used with the interface lines
IIC Module
The integrated IIC Bus Module handles the transmission and reception of frames over
the two-line IIC bus in accordance with the IIC Bus specification. The on-chip IIC Module
can receive and transmit data using 7-bit or 10-bit addressing and it can operate in slave
mode, in master mode or in multi-master mode.
Several physical interfaces (port pins) can be established under software control. Data
can be transferred at speeds up to 400 kbit/sec.
Two interrupt nodes dedicated to the IIC module allow efficient interrupt service and also
support operation via PEC transfers.
Note: The port pins associated with the IIC interfaces feature open drain drivers only, as
Data Sheet
assigned to Port 4, the interface lines override the segment address lines and the
segment address output on Port 4 is therefore limited to 6/4 bits i.e. address lines
A21/A19 … A16. CS lines can be used to increase the total amount of addressable
external memory.
required by the IIC specification.
33
C161CS/JC/JI-32R
C161CS/JC/JI-L
V3.0, 2001-01