R5F61525 RENESAS [Renesas Technology Corp], R5F61525 Datasheet - Page 487

• Manufacturer Part Number: R5F61525
• Description: 32-Bit CISC Microcomputer H8SX Family H8SX/1500 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

The HCAN is a module for controlling a controller area network (CAN) for real time
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 13.1.
13.1
• 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: Two methods
• Data reception: Two methods
• CPU interrupts: 12
• HCAN operating 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: 0 to 8 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
Features
Section 13 Controller Area Network (HCAN)
Section 13 Controller Area Network (HCAN)
Rev. 3.00 Mar. 14, 2006 Page 449 of 804
REJ09B0104-0300