h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 411

• Manufacturer Part Number: h8s-2628
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

The HCAN is a module for controlling a controller area network (CAN) for realtime
communication in vehicular and industrial equipment systems, etc. For details on CAN
specification, refer to Bosch CAN Specification Version 2.0 1991, Robert Bosch GmbH.
The block diagram of the HCAN is shown in figure 15.1.
15.1
IFCAN00C_000020020900
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: Two methods
Data reception: Two methods
CPU interrupts: 12
HCAN operating modes
Support for various modes
Communication systems: NRZ (Non-Return to Zero) system (with bit-stuffing function)
Broadcast communication system
Transmission path: Bidirectional 2-wire serial communication
Communication speed: Max. 1 Mbps
Data length: 8 to 0 bytes
Mailbox (buffer) number order (low-to-high)
Message priority (identifier) reverse-order (high-to-low)
Message identifier match (transmit/receive-setting buffers)
Reception with message identifier masked (receive-only)
Error interrupt
Reset processing interrupt
Message reception interrupt
Message transmission interrupt
Hardware reset
Software reset
Normal status (error-active, error-passive)
Bus off status
HCAN configuration mode
Features
Section 15 Controller Area Network (HCAN)
Section 15 Controller Area Network (HCAN)
Rev. 3.00 Oct 04, 2005 page 371 of 598
REJ09B0155-0300