Standalone controller is configurable for CAN bus
For use in automotive and industrial designs, the DCAN FD is a standalone controller for CAN applications. It conforms to Bosch CAN 2.0B specification (2.0B Active) and CAN FD (flexible data-rate) – in accordance to ISO 11898-1:2015, confirms Digital Core Design.
The IP core can provide the increased bandwidth and throughput demanded by today’s CAN-based in-vehicle networks. For non-automotive projects, the longer payload (more than 8bytes) can be exploited.
The improved protocol overcomes standard CAN limits. For example, data can be transmitted faster than with 1Mbit/s (even up to 8Mbit/s) and the payload (data field) is up to 64bytes long. When only one node is transmitting, the bit-rate can be increased, because no nodes need to be synchronised, although they will need to be resynchronised before the transmission of the ACK slot bit, advises the company.
The core has a simple CPU interface (8-,16- or 32bit configurable data width), with small or big endian addressing scheme. Hardware message filtering and 128byte receive FIFO enable back-to-back message reception, with minimum CPU load. The DCAN FD is described at RTL level, allowing target use in FPGA or ASIC technologies.