MC68HC705KJ1 Datasheet, PDF (21/108 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Chapter 2
Memory
2.1 Introduction
This section provides:
• Memory map (Figure 2-1)
• Summary of the input/output registers (Figure 2-2)
• Description of:
– Random-access memory (RAM)
– EPROM/OTPROM (electrically programmable read-only memory/one-time programmable
read-only memory)
– Mask option register
Memory features include:
• 1232 Bytes of User EPROM, Plus Eight Bytes for User Vectors
• 64 Bytes of User RAM
2.2 Unimplemented Memory Locations
Accessing an unimplemented location can have unpredictable effects on MCU operation. In Figure 2-2
and in register figures in this document, unimplemented locations are shaded.
2.3 Reserved Memory Locations
Accessing a reserved location can have unpredictable effects on MCU operation. In Figure 2-2 and in
register figures in this document, reserved locations are marked with the word Reserved or with the
letter R.
2.4 Memory Map
See Figure 2-1.
MC68HC705KJ1 • MC68HRC705KJ1 • MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
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