MC68HC908GP32 Datasheet, PDF (65/410 Pages) Motorola, Inc – M68HC08 Family of 8-bit microcontroller units (MCUs)

Freescale Semiconductor, Inc.
Low-Power Modes
Low-Voltage Inhibit Module (LVI)
3.10 Low-Voltage Inhibit Module (LVI)
3.10.1 Wait Mode
If enabled, the 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.
3.10.2 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.
3.11 Serial Communications Interface Module (SCI)
3.11.1 Wait Mode
The SCI module remains active in wait mode. Any enabled CPU
interrupt request from the SCI module can bring the MCU out of wait
mode.
If SCI module functions are not required during wait mode, reduce power
consumption by disabling the module before executing the WAIT
instruction.
3.11.2 Stop Mode
The SCI module is inactive in stop mode. The STOP instruction does not
affect SCI register states. SCI module operation resumes after the MCU
exits stop mode.
Because the internal clock is inactive during stop mode, entering stop
mode during an SCI transmission or reception results in invalid data.
MC68HC908GP32•MC68HC08GP32 — Rev. 6
MOTOROLA
Low-Power Modes
For More Information On This Product,
Go to: www.freescale.com
Technical Data
63