MB90540/540G/545/545G Series
■ CAN CONTROLLER
The MB90540 series contains two CAN controllers (CAN0 and CAN1) , the MB90545 series contains only one
(CAN0) . The Evaluation Chip MB90V540 also has two CAN controllers.
The CAN controller has the following features :
• Conforms to CAN Specification Version 2.0 Part A and B
- Supports transmission/reception in standard frame and extended frame formats
• Supports transmission of data frames by receiving remote frames
• 16 transmitting/receiving message buffers
- 29-bit ID and 8-byte data
- Multi-level message buffer configuration
• Provides full-bit comparison, full-bit mask, acceptance register 0/acceptance register 1 for each message
buffer as ID acceptance mask
- Two acceptance mask registers in either standard frame format or extended frame formats
• Bit rate programmable from 10 Kbps to 1 Mbps (when input clock is at 16 MHz)
List of Control Registers
Address
Register
Abbreviation
BVALR
TREQR
TCANR
TCR
Access
R/W
R/W
W
Initial Value
CAN0
CAN1
000070H
000071H
000072H
000073H
000074H
000075H
000076H
000077H
000078H
000079H
00007AH
00007BH
00007CH
00007DH
00007EH
00007FH
000080H
000081H
000082H
000083H
000084H
000085H
000086H
000087H
000088H
000089H
00008AH
00008BH
00008CH
00008DH
00008EH
00008FH
Message buffer valid register
Transmit request register
Transmit cancel register
00000000 00000000B
00000000 00000000B
00000000 00000000B
00000000 00000000B
00000000 00000000B
00000000 00000000B
00000000 00000000B
Transmit complete register
Receive complete register
Remote request receiving register
Receive overrun register
R/W
R/W
R/W
R/W
R/W
RCR
RRTRR
ROVRR
RIER
Receive interrupt enable register
00000000 00000000B
(Continued)
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