MC68HC08AB16A Datasheet, PDF (59/380 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Technical Data — MC68HC08AB16A
Section 4. Read-Only Memory (ROM)
4.1 Contents
4.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
4.2 Introduction
This section describes the 16,384 bytes of read-only memory (ROM)
and 48 bytes of user vectors.
4.3 Functional Description
These addresses are user ROM locations:
$BE00–$FDFF; user memory, 16,384 bytes.
$FFD0–$FFFF (These locations are reserved for user-defined interrupt
and reset vectors.)
NOTE: A mask option sets the security feature which prevents viewing of the
ROM contents.¹ See Section 6. Mask Options (MOR).
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the ROM contents difficult for unauthorized users.
MC68HC08AB16A — Rev. 2.0
MOTOROLA
Read-Only Memory (ROM)
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Technical Data
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