upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 526

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

16.1.2 Overview of Functions
Table 16-1 presents an overview of the CAN controller functions.
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Protocol
Baud rate
Data storage
Number of messages
Message reception
Message transmission
Remote frame
processing
Time stamp function
Diagnostic function
Forced release from
bus-off state
Power save mode
Function
CAN protocol ISO 11898 (standard and extended frame transmission/reception)
Maximum 1 Mbps (CAN clock input Š 8 MHz)
Storing messages in the CAN RAM
• 32 message buffers ¥ 2 channels
• Each message buffer can be set to be either a transmit message buffer or a receive
• Unique ID can be set to each message buffer.
• Mask setting of four patterns is possible for each channel.
• A receive completion interrupt is generated each time a message is received and
• Two or more receive message buffers can be used as a FIFO receive buffer (multi-
• Receive history list function
• Unique ID can be set to each message buffer.
• Transmit completion interrupt for each message buffer
• Message buffer numbers 0 to 7 specified as transmit message buffers can be used
• Transmission history list function
Remote frame processing by transmit message buffer
• The time stamp function can be set for a receive message when a 16-bit timer is
• Readable error counters
• “Valid protocol operation flag” for verification of bus connections
• Receive-only mode
• Single-shot mode
• CAN protocol error type decoding
• Self-test mode
• Default mode can be set while bus is off, so that bus can be forcibly released from
• CAN sleep mode (can be woken up by CAN bus)
• CAN stop mode (cannot be woken up by CAN bus)
message buffer.
stored in a message buffer.
buffer receive block function).
for automatic block transfer. Message transmission interval is programmable (auto-
matic block transmission function (hereafter referred to as “ABT”)).
used in combination.
SOF or EOF in a CAN message frame can be detected by using a trigger that
selects a time stamp capture.
bus-off state.
Table 16-1: Overview of Functions
Chapter 16 FCAN Controller
User’s Manual U16702EE3V2UD00
Details