MC68HC908GP32 Datasheet, PDF (141/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Configuration Register (CONFIG)
Functional Description
SCIBDSRC — SCI Baud Rate Clock Source Bit
SCIBDSRC controls the clock source used for the SCI. The setting of
this bit affects the frequency at which the SCI operates.
1 = Internal data bus clock used as clock source for SCI
0 = External oscillator used as clock source for SCI
COPRS — COP Rate Select Bit
COPRS selects the COP timeout period. Reset clears COPRS. (See
Section 9. Computer Operating Properly (COP).)
1 = COP timeout period = 2¹³ – 2⁴ CGMXCLK cycles
0 = COP timeout period = 2¹⁸ – 2⁴ CGMXCLK cycles
LVISTOP — LVI Enable in Stop Mode Bit
When the LVIPWRD bit is clear, setting the LVISTOP bit enables the
LVI to operate during stop mode. Reset clears LVISTOP. (See
3.6.2 Stop Mode.)
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 14. Low-Voltage Inhibit (LVI).)
1 = LVI module resets disabled
0 = LVI module resets enabled
LVIPWRD — LVI Power Disable Bit
LVIPWRD disables the LVI module. (See Section 14. Low-Voltage
Inhibit (LVI).)
1 = LVI module power disabled
0 = LVI module power enabled
LVI5OR3 — LVI 5-V or 3-V Operating Mode Bit
LVI5OR3 selects the voltage operating mode of the LVI module. (See
Section 14. Low-Voltage Inhibit (LVI).) The voltage mode selected
for the LVI should match the operating V_DD. See Section 23.
Electrical Specifications for the LVI’s voltage trip points for each of
the modes.
1 = LVI operates in 5-V mode.
0 = LVI operates in 3-V mode.
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Configuration Register (CONFIG)
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Technical Data
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