MC68HC908GZ8 Datasheet, PDF (44/344 Pages) Motorola, Inc – Microcontrollers

Freescale Semiconductor, Inc.
Low-Power Modes
3.8 Keyboard Interrupt Module (KBI)
3.8.1 Wait Mode
The keyboard interrupt (KBI) 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.
3.8.2 Stop 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.
3.9 Low-Voltage Inhibit Module (LVI)
3.9.1 Wait Mode
If enabled, the low-voltage inhibit (LVI) module remains active in wait mode. If
enabled to generate resets, the LVI module can generate a reset and bring the
MCU out of wait mode.
3.9.2 Stop Mode
If enabled, the LVI module remains active in stop mode. If enabled to generate
resets, the LVI module can generate a reset and bring the MCU out of stop mode.
3.10 Motorola Scalable Controller Area Network Module (MSCAN)
3.10.1 Wait Mode
The Motorola scalable controller area network (MSCAN) module remains active
after execution of the WAIT instruction. In wait mode, the MSCAN08 registers are
not accessible by the CPU.
If the MSCAN08 functions are not required during wait mode, reduce the power
consumption by disabling the MSCAN08 module before enabling the WAIT
instruction.
3.10.2 Stop Mode
The MSCAN08 module is inactive in stop mode. The STOP instruction does not
affect MSCAN08 register states.
Because the internal clock is inactive during stop mode, entering stop mode during
an MSCAN08 transmission or reception results in invalid data.
Data Sheet
44
Low-Power Modes
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MC68HC908GZ8
MOTOROLA