MC68HC908GP32 Datasheet, PDF (61/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Low-Power Modes
Analog-to-Digital Converter (ADC)
3.2.2 Stop Mode
Stop mode is entered when a STOP instruction is executed. The CPU
clock is disabled and the bus clock is disabled if the OSCSTOPENB bit
in the CONFIG register is at a logic 0. (See Section 8. Configuration
Register (CONFIG).)
3.3 Analog-to-Digital Converter (ADC)
3.3.1 Wait Mode
The ADC continues normal operation during wait mode. Any enabled
CPU interrupt request from the ADC can bring the MCU out of wait
mode. If the ADC is not required to bring the MCU out of wait mode,
power down the ADC by setting ADCH4–ADCH0 bits in the ADC status
and control register before executing the WAIT instruction.
3.3.2 Stop Mode
The ADC module is inactive after the execution of a STOP instruction.
Any pending conversion is aborted. ADC conversions resume when the
MCU exits stop mode after an external interrupt. Allow one conversion
cycle to stabilize the analog circuitry.
3.4 Break Module (BRK)
3.4.1 Wait Mode
If enabled, the break module is active in wait mode. In the break routine,
the user can subtract one from the return address on the stack if the
SBSW bit in the break status register is set.
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Low-Power Modes
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Technical Data
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