参数资料
型号: MC9S12GC16CFU25
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封装: QFP-80
文件页数: 102/136页
文件大小: 2022K
代理商: MC9S12GC16CFU25
Device User Guide — 9S12C128DGV1/D V01.05
68
4.4.1 Stop
Executing the CPU STOP instruction stops all clocks and the oscillator thus putting the chip in fully static
mode. Wake up from this mode can be done via reset or external interrupts.
4.4.2 Pseudo Stop
This mode is entered by executing the CPU STOP instruction. In this mode the oscillator is still running
and the Real Time Interrupt (RTI) or Watchdog (COP) sub module can stay active. Other peripherals are
turned off. This mode consumes more current than the full STOP mode, but the wake up time from this
mode is significantly shorter.
4.4.3 Wait
This mode is entered by executing the CPU WAI instruction. In this mode the CPU will not execute
instructions. The internal CPU signals (address and databus) will be fully static. All peripherals stay active.
For further power consumption reduction the peripherals can individually turn off their local clocks.
4.4.4 Run
Although this is not a low power mode, unused peripheral modules should not be enabled in order to save
power.
Section 5 Resets and Interrupts
5.1 Overview
Consult the Exception Processing section of the CPU12 Reference Manual for information.
5.2 Vectors
5.2.1 Vector Table
Table 5-1 lists interrupt sources and vectors in default order of priority.
Table 5-1 Interrupt Vector Locations
Vector Address
Interrupt Source
CCR
Mask
Local Enable
HPRIO Value
to Elevate
$FFFE, $FFFF
External Reset, Power On Reset or Low
Voltage Reset (see CRG Flags Register
to determine reset source)
None
$FFFC, $FFFD
Clock Monitor fail reset
None
COPCTL (CME, FCME)
$FFFA, $FFFB
COP failure reset
None
COP rate select
$FFF8, $FFF9
Unimplemented instruction trap
None
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