MC68HC08AS32A Datasheet, PDF (145/296 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Data Sheet — MC68HC08AS32A
Section 10. Mask Options
10.1 Introduction
This section describes the mask options and the mask option registers.
10.2 Functional Description
The mask options are hard-wired connections, specified at the same time as the
ROM code, which allow the user to customize the MCU. The options control the
enable or disable ability of the following functions:
• ROM security⁽¹⁾
• Resets caused by the LVI module
• Power to the LVI module
• Stop mode recovery time (32 CGMXCLK cycles or 4096 CGMXCLK cycles)
• COP timeout period (2¹⁸–2⁴ CGMXCLK cycles or 2¹³â€“2⁴ CGMXCLK
cycles)
• STOP instruction
• Computer operating properly module (COP)
• EEPROM reference clock source
1. No security feature is absolutely secure. However, Motorola’s strategy is to make reading
or copying the ROM data difficult for unauthorized users.
MC68HC08AS32A — Rev. 1
MOTOROLA
Mask Options
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Data Sheet
145