MC68HC908LD64 Datasheet, PDF (75/362 Pages) Freescale Semiconductor, Inc – Microcontrollers

Data Sheet — MC68HC908LD64
Section 5. Configuration Register (CONFIG)
5.1 Contents
5.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
5.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .75
5.4 Configuration Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76
5.2 Introduction
This section describes the configuration register, CONFIG. The
configuration register enables or disables these options:
• Stop mode recovery time (32 OSCXCLK cycles or 4096
OSCXCLK cycles)
• COP timeout period (2¹⁸ – 2⁴ or 2¹³ – 2⁴ OSCXCLK cycles)
• STOP instruction
• Computer operating properly module (COP)
5.3 Functional Description
The configuration register is used in the initialization of various options.
The configuration register can be written once after each reset. All of the
configuration register bits are cleared during reset. Since the various
options affect the operation of the MCU, it is recommended that this
register be written immediately after reset. The configuration register is
located at $001F. The configuration register may be read at anytime.
MC68HC908LD64 — Rev. 3.0
Freescale Semiconductor
Configuration Register (CONFIG)
Data Sheet
75