SERIAL COMMUNICATIONS CONTROLLER CONTROLLER AREA NETWORK PROTOCOL

The 82527 serial communications controller is a highly integrated device that performs serial communication according to the CAN protocol. It performs all serial communication functions such as transmission and reception of messages, message filtering, transmit search, and interrupt search with minimal interaction from the host microcontroller, or CPU.

■ Supports CAN Specification 2.0

— Standard Data and Remote Frames

— Extended Data and Remote Frames

■ Programmable Global Mask

— Standard Message ldentifier

— Extended Message ldentifier

■ 15 Message Objects of 8-Byte Data Length

— 14 Tx/Rx Buffers

— 1 Rx Buffer with Programmable Mask

■ Flexible CPU Interface

— 8-Bit Multiplexed

— 16-Bit Multiplexed

— 8-Bit Non-Multiplexed (Synchronous/Asynchronous)

— Serial Interface

■ Programmable Bit Rate

■ Programmable Clock Output

■ Flexible Interrupt Structure

■ Flexible Status Interface

■ Configurable Output Driver

■ Configurable Input Comparator

■ Two 8-Bit Bidirectional I/O Ports

■ 44-Lead PLCC Package

■ 44-Lead QFP Package

■ Pinout Compatibility with the 82526