MC68HC908BD48 Datasheet, PDF (63/290 Pages) Freescale Semiconductor, Inc – Microcontrollers

Technical Data — MC68HC908BD48
Section 5. Configuration Register (CONFIG)
5.1 Contents
5.2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.3 Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.3.1 Configuration Register 0. . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
5.3.2 Configuration Register 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.2 Introduction
This section describes the configuration registers, CONFIG0 and
CONFIG1. The configuration registers enable or disable these options:
• Sync Processor HSYNCO output pin
• Sync Processor VSYNCO output pin
• Sync Processor SOG input pin
• 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 registers are used in the initialization of various
options. The configuration registers 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
these registers be written immediately after reset. The configuration
MC68HC908BD48 — Rev. 1.0
MOTOROLA
Configuration Register (CONFIG)
Technical Data
63