MC912DG128A Motorola, MC912DG128A Datasheet - Page 269

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

1-mscan12
MOTOROLA
Contents
Introduction
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
External Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Message Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 271
Identifier Acceptance Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276
Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Protocol Violation Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Low Power Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Timer Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Clock System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Memory Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Programmer’s Model of Message Storage . . . . . . . . . . . . . . . . . . . . 289
Programmer’s Model of Control Registers . . . . . . . . . . . . . . . . . . . . 294
The MC68HC912DT128A has three identical msCAN12 modules,
identified as CAN0, CAN1 and CAN2. The MC68HC912DG128A has
two: CAN0 and CAN1. The information to follow describes one msCAN
unless specifically noted and register locations specifically relate to
CAN0. CAN1 registers are located 512 bytes from CAN0, and on the
MC68HC912DT128A, CAN2 registers are located 256 bytes from
CAN0.
The msCAN12 is the specific implementation of the Motorola scalable
CAN (msCAN) concept targeted for the Motorola M68HC12
microcontroller family.
MSCAN Controller
MSCAN Controller
MC68HC912DT128A Rev 2.0
MSCAN Controller
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