MC68HC12 Datasheet, PDF (346/478 Pages) Motorola, Inc – The MC68HC912DT128A microcontroller unit (MCU) is a 16-bit device composed of standard on-chip peripherals including a 16-bit central processing unit

MSCAN Controller
18.12 Programmer’s Model of Message Storage
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.
Figure 18-11. Message Buffer Organization
Address
(1)
Register name
01x0
01x1
01x2
01x3
01x4
01x5
01x6
01x7
01x8
01x9
01xA
01xB
01xC
01xD
01xE
01xF
Identifier register 0
Identifier register 1
Identifier register 2
Identifier register 3
Data segment register 0
Data segment register 1
Data segment register 2
Data segment register 3
Data segment register 4
Data segment register 5
Data segment register 6
Data segment register 7
Data length register
Transmit buffer priority register⁽²⁾
Unused
Unused
1. x is 4, 5, 6, or 7 depending on which buffer RxFG,
Tx0, Tx1, or Tx2 respectively.
2. Not applicable for receive buffers
Technical Data
346
MSCAN Controller
MC68HC912DT128A — Rev 4.0
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