MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 370

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

MSCAN08 Controller (MSCAN08)
21.13.2 Identifier Registers
Advance Information
370
Figure 21-11. Receive/Transmit Message Buffer Extended Identifier (IDRn) (Sheet 1 of 2)
$05b
$05b
$05b
$05b
$05b
$05b
Addr
0
1
2
3
4
5
Register
DSR0
DSR1
IDR0
IDR1
IDR2
IDR3
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
The identifiers consist of either 11 bits (ID10–ID0) for the standard, or 29
bits (ID28–ID0) for the extended format. ID10/28 is the most significant
bit and is transmitted first on the bus during the arbitration procedure.
The priority of an identifier is defined to be highest for the smallest binary
number.
SRR — Substitute Remote Request
This fixed recessive bit is used only in extended format. It must be set
to 1 by the user for transmission buffers and will be stored as received
on the CAN bus for receive buffers.
Bit 7
ID28
ID20
ID14
DB7
DB7
ID6
MSCAN08 Controller (MSCAN08)
ID27
ID19
ID13
DB6
DB6
ID5
6
ID26
ID18
ID12
DB5
DB5
ID4
5
SRR (=1) IDE (=1)
ID25
ID11
DB4
DB4
ID3
4
ID24
ID10
DB3
DB3
ID2
3
MC68HC08AZ60A — Rev 0.0
ID23
ID17
DB2
DB2
ID9
ID1
2
ID22
ID16
DB1
DB1
ID8
ID0
1
MOTOROLA
Bit 0
ID21
ID15
RTR
DB0
DB0
ID7