MC68HC08XL36 Datasheet, PDF (78/362 Pages) Freescale Semiconductor, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
Low-Power Modes
Exiting Wait Mode
The following events restart the CPU clock and load the program counter
with the reset vector or with an interrupt vector:
• External reset — A logic 0 on the RST pin resets the MCU and
loads the program counter with the contents of locations $FFFE
and $FFFF.
• External interrupt — A high-to-low transition on an external
interrupt pin loads the program counter with the contents of
locations:
– $FFFA and $FFFB (IRQ1 pin)
– $FFE0 and $FFE1 (IRQ2 pin)
• Break interrupt — A break interrupt loads the program counter
with the contents of $FFFC and $FFFD.
• Computer operating properly module (COP) reset — A timeout of
the COP counter resets the MCU and loads the program counter
with the contents of $FFFE and $FFFF.
• Low-voltage inhibit module (LVI) reset — A power supply voltage
below the LVI_tripf voltage resets the MCU and loads the program
counter with the contents of locations $FFFE and $FFFF.
• Clock generator module (CGM) interrupt — A CPU interrupt
request from the phase-locked loop (PLL) loads the program
counter with the contents of $FFF8 and $FFF9.
• Direct memory access module (DMA) interrupt — A CPU interrupt
request from the DMA loads the program counter with the
contents of $FFF6 and $FFF7.
MC68HC08XL36
78
Low-Power Modes
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