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STM8AF5269 датащи(PDF) 26 Page - STMicroelectronics |
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STM8AF5269 датащи(HTML) 26 Page - STMicroelectronics |
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26 / 125 page ![]() Product overview STM8AF526x/8x/Ax STM8AF6269/8x/Ax 26/125 DocID14395 Rev 15 • Interrupt: – Successful address/data communication – Error condition – Wakeup from Halt • Wakeup from Halt on address detection in slave mode 5.9.5 Controller area network interface (beCAN) The beCAN controller (basic enhanced CAN), interfaces the CAN network and supports the CAN protocol version 2.0A and B. It is equipped with a receive FIFO and a very versatile filter bank. Together with a filter match index, this allows a very efficient message handling in today’s car network architectures. The CPU is significantly unloaded. The maximum transmission speed is 1 Mbit/s. Transmission • Three transmit mailboxes • Configurable transmit priority by identifier or order request Reception • 11- and 29-bit ID • 1 receive FIFO (3 messages deep) • Software-efficient mailbox mapping at a unique address space • FMI (filter match index) stored with message for quick message association • Configurable FIFO overrun • Time stamp on SOF reception • 6 filter banks, 2 x 32 bytes (scalable to 4 x 16-bit) each, enabling various masking configurations, such as 12 filters for 29-bit ID or 48 filters for 11-bit ID. • Filtering modes (mixable): – Mask mode permitting ID range filtering – ID list mode Interrupt management • Maskable interrupt • Software-efficient mailbox mapping at a unique address space |
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