upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 641
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upd70f3422gj-gae-qs-ax
Manufacturer Part Number
upd70f3422gj-gae-qs-ax
Description
32-bit Single-chip Microcontroller
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD70F3422GJ-GAE-QS-AX.pdf
(930 pages)
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CAN Controller (CAN)
Function
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
Table 19-1
19.1.1 Overview of functions
Table 19-1 presents an overview of the CAN Controller functions.
Overview of functions
Preliminary User’s Manual U17566EE1V2UM00
Details
CAN protocol ISO 11898 (standard and extended frame transmission/reception)
Maximum 1 Mbps (CAN clock input ≥ 8 MHz)
Storing messages in the CAN RAM
• 32 message buffers per channel
• Each message buffer can be set to be either a transmit message buffer or a
• 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
• Two or more receive message buffers can be used as a FIFO receive buffer
• Receive history list function
• Unique ID can be set to each message buffer.
• Transmit completion interrupt for each message buffer
• Message buffer number 0 to 7 specified as the transmit message buffer can be
• Transmission history list function
Remote frame processing by transmit message buffer
• The time stamp function can be set for a message reception when a 16-bit timer
• 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
• CAN Sleep mode (can be woken up by CAN bus)
• CAN Stop mode (cannot be woken up by CAN bus)
receive message buffer.
and stored in a message buffer.
(multi-buffer receive block function).
set for automatic block transfer. Message transmission interval is programmable
(automatic block transmission function (hereafter referred to as “ABT”)).
is used in combination.
from the bus-off state.
Chapter 19
641
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