mc68hc908lj24 Freescale Semiconductor, Inc, mc68hc908lj24 Datasheet - Page 266

• Manufacturer Part Number: mc68hc908lj24
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Infrared Serial Communications
13.8 Low-Power Modes
13.8.1 Wait Mode
13.8.2 Stop Mode
Data Sheet
266
Infrared Serial Communications Interface Module (IRSCI)
The WAIT and STOP instructions put the MCU in low power-
consumption standby modes.
The SCI module remains active after the execution of a WAIT
instruction. In wait mode, the SCI module registers are not accessible by
the CPU. 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.
Refer to
The SCI module is inactive after the execution of a STOP instruction.
The STOP instruction does not affect SCI register states. SCI module
operation resumes after an external interrupt.
Because the internal clock is inactive during stop mode, entering stop
mode during an SCI transmission or reception results in invalid data.
Refer to
9.7 Low-Power Modes
9.7 Low-Power Modes
for information on exiting wait mode.
for information on exiting stop mode.
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor