HD6432621 Hitachi, HD6432621 Datasheet - Page 563

• Manufacturer Part Number: HD6432621
• Description: (HD64F262x Series) 16-Bit Microcomputer
• Manufacturer: Hitachi

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/2626 Series and
H8S/2623 Series have 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: Five interrupt vectors:
HCAN operating modes: Support for various modes:
Section 15 Hitachi Controller Area Network (HCAN)
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 (mailboxes 1 to 15)
Message reception interrupt (mailbox 0)
Message transmission interrupt
Hardware reset
Normal status (error-active, error-passive)
Bus off status
NRZ (Non-Return to Zero) system (with bit-stuffing function)
Broadcast communication system
Software reset
Overview
Features
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