h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 563

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

15.1
The HCAN is a module for controlling a controller area network (CAN) for realtime
communication in vehicular and industrial equipment systems, etc. The H8S/2646 Group has a
single-channel on-chip HCAN module.
Reference: BOSCH CAN Specification Version 2.0 1991, Robert Bosch GmbH
15.1.1
• CAN version: Bosch 2.0B active compatible
• Number of channels: 1
• Data buffers: 16 (one receive-only buffer and 15 buffers settable for transmission/reception)
• Data transmission: Choice of two methods:
• Data reception: Two methods:
• CPU interrupts: Two interrupt vectors:
• HCAN operating modes: Support for various modes:
 Communication systems:
 Transmission path: Bidirectional 2-wire serial communication
 Communication speed: Max. 1 Mbps
 Data length: 0 to 8 bytes
 Mailbox (buffer) number order (low-to-high)
 Message priority (identifier) high-to-low order
 Message identifier match (transmit/receive-setting buffers)
 Reception with message identifier masked (receive-only)
 Error interrupt
 Reset processing interrupt
 Message reception interrupt (mailbox 1 to 15)
 Message reception interrupt (mailbox 0)
 Message transmission interrupt
 Hardware reset
 Software reset
NRZ (Non-Return to Zero) system (with bit-stuffing function)
Broadcast communication system
Overview
Features
Section 15 Controller Area Network (HCAN)
Section 15 Controller Area Network (HCAN)
Rev. 5.00 Sep 22, 2005 page 537 of 1136
REJ09B0257-0500