MC68HC908GZ8 Datasheet, PDF (180/344 Pages) Motorola, Inc – Microcontrollers

MSCAN08 Controller (MSCAN08)
16.12.1 Message Buffer Outline
Figure 16-11 shows the common 13-byte data structure of receive and transmit
buffers for extended identifiers. The mapping of standard identifiers into the IDR
registers is shown in Figure 16-12. All bits of the 13-byte data structure are
undefined out of reset.
NOTE: The foreground receive buffer can be read anytime but cannot be written. The
transmit buffers can be read or written anytime.
Addr.
Register
Bit 7
6
5
4
3
2
1
Bit 0
$05b0
IDR0 ^Read:
ID28
ID27
ID26
ID25
ID24
ID23
ID22
ID21
Write:
$05b1
Read:
IDR1 _Write:
ID20
ID19
ID18 SRR (=1) IDE (=1)
ID17
ID16
ID15
$05b2
IDR2
Read:
Write:
ID14
ID13
ID12
ID11
ID10
ID9
ID8
ID7
$05b3
IDR3 ^Read:
ID6
ID5
ID4
ID3
ID2
ID1
ID0
RTR
Write:
$05b4
Read:
DSR0 _Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$05b5
DSR1
Read:
Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$05b6
DSR2 ^Read:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
Write:
$05b7
Read:
DSR3 _Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$05b8
DSR4
Read:
Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
$05b9
DSR5
Read:
Write:
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
= Unimplemented
Figure 16-11. Receive/Transmit Message Buffer
Extended Identifier (IDRn)
Data Sheet
180
MSCAN08 Controller (MSCAN08)
MC68HC908GZ8
Freescale Semiconductor