Introduction
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23.1 Introduction
23.1.1 DCAN Features
The general features of the DCAN controller are:
• Supports CAN protocol version 2.0 part A, B (ISO 11898-1)
• Bit rates up to 1 MBit/s
• Dual clock source
• 16, 32, 64 or 128 message objects (instantiated as 64 on this device)
• Individual identifier mask for each message object
• Programmable FIFO mode for message objects
• Programmable loop-back modes for self-test operation
• Suspend mode for debug support
• Software module reset
• Automatic bus on after Bus-Off state by a programmable 32-bit timer
• Message RAM parity check mechanism
• Direct access to Message RAM during test mode
• CAN Rx / Tx pins configurable as general purpose IO pins
• Two interrupt lines (plus additional parity-error interrupt line)
• RAM initialization
• DMA support
23.1.2 Unsupported DCAN Features
The DCAN module in this device does not support GPIO pin mode. All GPIO functionality is mapped
through the GPIO modules and muxed at the pins. GPIO pin control signals from the DCAN modules are
not connected.
3882
Controller Area Network (CAN) SPRUH73H–October 2011–Revised April 2013
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