mc68hc908lb8 Freescale Semiconductor, Inc, mc68hc908lb8 Datasheet - Page 59

• Manufacturer Part Number: mc68hc908lb8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 5
Configuration Register (CONFIG)
5.1 Introduction
This section describes the configuration registers, CONFIG1 and CONFIG2. The configuration registers
enable or disable these options:
5.2 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 microcontroller unit (MCU), it is recommended that these
registers be written immediately after reset. The configuration registers are located at $001E and $001F
and may be read at anytime.
Freescale Semiconductor
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COP timeout period (2
STOP instruction
Stop mode recovery (32 x BUSCLKX4 cycles or
4096 x BUSCLKX4 cycles)
Computer operating properly module (COP)
Low-voltage inhibit (LVI) module control
IRQ pin
RST pin
OSC option selection
On a FLASH device, the options are one-time writable by the user after
each reset. The CONFIG registers are not in the FLASH memory but are
special registers containing one-time writable latches after each reset.
Upon a reset, the CONFIG registers default to predetermined settings as
shown in
Figure 5-1
18
– 2
4
and
or 2
MC68HC908LB8 Data Sheet, Rev. 1
Figure
13
– 2
4
5-2.
BUSCLKX4 cycles)
NOTE
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