MC68HC08AZ0 Datasheet, PDF (137/444 Pages) Motorola, Inc – Advance Information

Freescale Semiconductor, Inc.
Mask Options
Mask Options
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Introduction
This section describes the mask options and the two mask option
registers. The mask options are hardwired connections specified by
Motorola. The options control the enable or disable of the following
functions:
• Resets caused by the LVI module
• Power to the LVI module
• Stop mode recovery time (32 CGMXCLK cycles or 4096
CGMXCLK cycles)
• ROM security¹
• STOP instruction
• Computer operating properly (COP) module enable
• EEPROM security
1-maskops
MOTOROLA
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading or
copying the ROM data difficult for unauthorized users.
There is no user-defined ROM on the MC68HC08AZ0.
Mask Options
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MC68HC08AZ0
135