External Interrupt Module (Irq) - Motorola MC68HC908GP32 Technical Data Manual

Low-Power Modes

3.8 External Interrupt Module (IRQ)

3.8.1 Wait Mode
3.8.2 Stop Mode
3.9 Keyboard Interrupt Module (KBI)
3.9.1 Wait Mode
3.9.2 Stop Mode
Technical Data
62
Freescale Semiconductor, Inc.
The STOP bit in the configuration register (CONFIG) enables the STOP
instruction. To prevent inadvertently turning off the COP with a STOP
instruction, disable the STOP instruction by clearing the STOP bit.
The IRQ module remains active in wait mode. Clearing the IMASK bit in
the IRQ status and control register enables IRQ CPU interrupt requests
to bring the MCU out of wait mode.
The IRQ module remains active in stop mode. Clearing the IMASK bit in
the IRQ status and control register enables IRQ CPU interrupt requests
to bring the MCU out of stop mode.
The keyboard module remains active in wait mode. Clearing the
IMASKK bit in the keyboard status and control register enables keyboard
interrupt requests to bring the MCU out of wait mode.
The keyboard module remains active in stop mode. Clearing the
IMASKK bit in the keyboard status and control register enables keyboard
interrupt requests to bring the MCU out of stop mode.
Low-Power Modes
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MC68HC908GP32 MC68HC08GP32
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Rev. 6
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MOTOROLA