MC68HC08XL36 Datasheet, PDF (176/362 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
TIM
Low-Power Modes
The WAIT and STOP instructions put the MCU in low-power-consump-
tion standby modes.
Wait Mode
The TIM remains active in wait mode. Any enabled CPU interrupt
request from the TIM can bring the MCU out of wait mode.
If TIM functions are not required during wait mode, reduce power
consumption by stopping the TIM before executing the WAIT instruction.
The DMA can service the TIM without exiting wait mode.
Stop Mode
The TIM is inactive in stop mode. The STOP instruction does not affect
register states or the state of the TIM counter. TIM operation resumes
when the MCU exits stop mode after an external interrupt.
TIM During Break Interrupts
A break interrupt stops the TIM counter.
The BCFE bit in the break flag control register (BFCR) enables software
to clear status bits during the break state. See Break Module (BRK) on
page 141.
To allow software to clear status bits during a break interrupt, write a
logic 1 to the BCFE bit. If a status bit is cleared during the break state, it
remains cleared when the MCU exits the break state.
MC68HC08XL36
176
Timer Interface Module (TIM)
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14-tim4_b
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