
MB90945 Series
29
■
CAN CONTROLLER
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 transmitting 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 mask register 0/acceptance mask 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
CAN1
000080
H
Message buffer
valid register
BVALR
R/W
00000000
00000000
000081
H
000082
H
Transmit request
register
TREQR
R/W
00000000
00000000
000083
H
000084
H
Transmit cancel
register
TCANR
W
00000000
00000000
000085
H
000086
H
Transmit
complete register
TCR
R/W
00000000
00000000
000087
H
000088
H
Receive complete register
RCR
R/W
00000000
00000000
000089
H
00008A
H
Remote request receiving
register
RRTRR
R/W
00000000
00000000
00008B
H
00008C
H
Receive overrun
register
ROVRR
R/W
00000000
00000000
00008D
H
00008E
H
Receive interrupt enable
register
RIER
R/W
00000000
00000000
00008F
H