Freescale Semiconductor MC68HC08KH12, Datasheet, Page: 47 / 262

MC68HC(7)08KH12
—
Rev. 1.1 Advance Information
Freescale Semiconductor
47
Advance Information — MC68HC(7)08KH12
Section 4. Read-Only Memory (ROM)
4.1 Contents
4.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.2 Introduction
This section describes the 11,776 bytes of read-only memory (ROM)
and 26 bytes of user vectors, available on the MC68HC08KH12 device
(ROM part).
On the MC68HC708KH12 (OTP part), the ROM is replaced with 11,776
bytes One-Time Programmable (OTP) ROM. Programming tools are
available from Freescale. Contact your local Freescale representative
for more information.
4.3 Functional Description
These addresses are user ROM locations:
$D000 – $FDFF
$FFE6 – $FFFF (These locations are reserved for user-defined interrupt
and reset vectors.)
NOTE:
A secutiry feature prevents viewing of the ROM contents.
1
1. No security feature is absolutely secure. However, Freescale’s strategy is to make reading or
copying the ROM contents difficult for unauthorized users.