ST72561J6-Auto STMicroelectronics, ST72561J6-Auto Datasheet - Page 216

• Manufacturer Part Number: ST72561J6-Auto
• Description: 8-bit MCU for automotive
• Manufacturer: STMicroelectronics

Specifications of ST72561J6-Auto

• Hdflash Endurance: 100 cycles, data retention 20 years at 55 °C
• 5 Power Saving Modes: halt, auto wake up from halt, active halt, wait and slow

beCAN controller (beCAN)
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beCAN controller (beCAN)
The beCAN controller (Basic Enhanced CAN), interfaces the CAN network and supports the
CAN protocol version 2.0A and B. It has been designed to manage high number of incoming
messages efficiently with a minimum CPU load. It also meets the priority requirements for
transmit messages.
Main features
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Transmission
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Reception
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Management
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General description
In today’s CAN applications, the number of nodes in a network is increasing and often
several networks are linked together via gateways. Typically the number of messages in the
system (and thus to be handled by each node) has significantly increased. In addition to the
application messages, network management and diagnostic messages have been
introduced.
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Supports CAN protocol version 2.0 A, B Active
Bit rates up to 1Mbit/s
2 transmit mailboxes
Configurable transmit priority
1 receive FIFO with three stages
6 scalable filter banks
Identifier list feature
Configurable FIFO overrun
Maskable interrupts
Software-efficient mailbox mapping at a unique address space
An enhanced filtering mechanism is required to handle each type of message.
Furthermore, application tasks require more CPU time, therefore real-time constraints
caused by message reception have to be reduced.
A receive FIFO scheme allows the CPU to be dedicated to application tasks for a long
time period without losing messages.
The standard HLP (Higher Layer Protocol) based on standard CAN drivers requires an
efficient interface to the CAN controller.
All mailboxes and registers are organized in 16-byte pages mapped at the same
address and selected via a page select register.
Doc ID 12370 Rev 8
ST72561-Auto