MC912DG128A Motorola, MC912DG128A Datasheet - Page 289

• Manufacturer Part Number: MC912DG128A
• Description: Microcontrollers
• Manufacturer: Motorola

Programmer’s Model of Message Storage
21-mscan12
MOTOROLA
The following section details the organization of the receive and transmit
message buffers and the associated control registers. For reasons of
programmer interface simplification the receive and transmit message
buffers have the same outline. Each message buffer allocates 16 bytes
in the memory map containing a 13 byte data structure. An additional
transmit buffer priority register (TBPR) is defined for the transmit buffers.
MSCAN Controller
Figure 50 msCAN12 Memory Map
$010D
$010E
$013C
$013D
$0100
$0108
$0109
$010F
$011F
$0120
$013F
$0140
$014F
$0150
$015F
$0160
$016F
$0170
$017F
$0110
Foreground Receive buffer
Port CAN registers
Transmit buffer 0
Transmit buffer 1
Transmit buffer 2
Control registers
Error counters
Identifier filter
Reserved
Reserved
16 bytes
29 bytes
Programmer’s Model of Message Storage
9 bytes
5 bytes
2 bytes
3 bytes
MC68HC912DT128A Rev 2.0
MSCAN Controller
289