h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 412

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

Section 15 Controller Area Network (HCAN)
Rev. 3.00 Oct 04, 2005 page 372 of 598
REJ09B0155-0300
Other features
Module stop mode can be set
Message Buffer Interface (MBI)
The MBI, consisting of mailboxes and a local acceptance filter mask (LAFM), stores CAN
transmit/receive messages (identifiers, data, etc.) Transmit messages are written by the CPU.
For receive messages, the data received by the CDLC is stored automatically.
Microprocessor Interface (MPI)
The MPI, consisting of a bus interface, control register, status register, etc., controls HCAN
internal data, status, and so forth.
CAN Data Link Controller (CDLC)
The CDLC, conforming to the Bosch CAN Ver. 2.0B active standard, performs transmission
and reception of messages (data frames, remote frames, error frames, overload frames, inter-
frame spacing), as well as CRC checking, bus arbitration, and other functions.
HCAN sleep mode
HCAN halt mode
DTC can be activated by message reception mailbox (HCAN mailbox 0 only)
MBI
Message buffer
MPI
Microprocessor interface
HCAN
Mailboxes
Message control
Message data
MC15 to MC0, MD15 to MD0
CPU interface
Control register
Status register
Figure 15.1 HCAN Block Diagram
LAFM
Bosch CAN 2.0B active
Data Link Controller
(CDLC)
CAN
Tx buffer
Rx buffer
HTxD
HRxD