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MB90340E Series
39
■
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 transmission/reception 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 2 Mbps (when input clock is at 16 MHz)
List of Control Registers (1)
Address
Register
Abbreviation
Access
Initial Value
CAN0
CAN1
000070
H
000080
H
Message Buffer
Valid Register
BVALR
R/W
00000000
B
00000000
B
000071
H
000081
H
000072
H
000082
H
Transmit Request
Register
TREQR
R/W
00000000
B
00000000
B
000073
H
000083
H
000074
H
000084
H
Transmit Cancel
Register
TCANR
W
00000000
B
00000000
B
000075
H
000085
H
000076
H
000086
H
Transmission
Complete Register
TCR
R/W
00000000
B
00000000
B
000077
H
000087
H
000078
H
000088
H
Receive Complete
Register
RCR
R/W
00000000
B
00000000
B
000079
H
000089
H
00007A
H
00008A
H
Remote Request
Receiving Register
RRTRR
R/W
00000000
B
00000000
B
00007B
H
00008B
H
00007C
H
00008C
H
Receive Overrun
Register
ROVRR
R/W
00000000
B
00000000
B
00007D
H
00008D
H
00007E
H
00008E
H
Reception Interrupt
Enable Register
RIER
R/W
00000000
B
00000000
B
00007F
H
00008F
H