mc68hc908gp20 Freescale Semiconductor, Inc, mc68hc908gp20 Datasheet - Page 139

• Manufacturer Part Number: mc68hc908gp20
• Description: M68hc08 Family Of 8-bit Microcontroller Units Mcus
• Manufacturer: Freescale Semiconductor, Inc

8.1 Contents
8.2 Introduction
8.3 Functional Description
MC68HC908GP20
Freescale Semiconductor
Advance Information — MC68HC908GP20
—
Rev 2.1
Section 8. Configuration Register (CONFIG)
8.2
8.3
This section describes the configuration registers, CONFIG1 and
CONFIG2. The configuration registers enable or disable these options:
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
registers are located at $001E and $001F. The configuration register
may be read at anytime.
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•
•
•
•
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Stop mode recovery time (32 CGMXCLK cycles or 4096
CGMXCLK cycles)
COP timeout period (2
STOP instruction
Computer operating properly module (COP)
Low-voltage inhibit (LVI) module control and voltage trip point
selection
Enable/disable the oscillator (OSC) during stop mode
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .139
18
– 2
4
or 2
13
– 2
4
CGMXCLK cycles)
Advance Information
139