MC908AB32CFUE Datasheet, PDF (86/392 Pages) Freescale Semiconductor, Inc – Microcontrollers

Configuration Register (CONFIG)
6.3 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
registers are located at $001F and $003F. The configuration register
may be read at anytime.
6.4 Configuration Register 1
Address: $001F
Bit 7
6
5
4
3
Read:
LVISTOP R LVIRSTD LVIPWRD SSREC
Write:
Reset: 0
0
0
0
0
R = Reserved
2
COPRS
0
1
STOP
0
Figure 6-1. Configuration Register 1 (CONFIG1)
Bit 0
COPD
0
LVISTOP — LVI Enable in Stop Mode Bit
When the LVIPWRD bit is clear, setting the LVISTOP bit enables the
LVI to operate in stop mode. Reset clears LVISTOP. (See Section
21. Low-Voltage Inhibit (LVI).)
1 = LVI enabled during stop mode
0 = LVI disabled during stop mode
LVIRSTD — LVI Reset Disable Bit
LVIRSTD disables the reset signal from the LVI module. (See
Section 21. Low-Voltage Inhibit (LVI).)
1 = LVI module resets disabled
0 = LVI module resets enabled
Technical Data
86
Configuration Register (CONFIG)
MC68HC908AB32 — Rev. 1.1
Freescale Semiconductor