參數(shù)資料
型號: MC68HC05K3CSD
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO20
封裝: SSOP-20
文件頁數(shù): 51/69頁
文件大小: 1383K
代理商: MC68HC05K3CSD
Operational Modes
Low-Power Modes
MC68HC05K3 — Rev. 5
Technical Data
MOTOROLA
Operational Modes
55
Figure 6-1. Stop/Halt/Wait Flowcharts
1. FETCH RESET VECTOR OR
2. SERVICE INTERRUPT
a.
STACK CPU STATE
b.
SET I BIT
C. VECTOR TO INTERRUPT ROUTINE
WAIT
EXTERNAL
RESET?
Y
N
IRQ
EXTERNAL
INTERRUPT?
Y
N
STOP EXTERNAL OSCILLATOR,
STOP INTERNAL TIMER CLOCK,
AND RESET STARTUP DELAY
RESTART EXTERNAL OSCILLATOR
AND BEGIN STABILIZATION DELAY
STOP INTERNAL PROCESSOR
CLOCK, CLEAR I BIT IN CCR, AND
SET IRQE IN ISCR
END
OF STARTUP
DELAY?
Y
N
IRQ
EXTERNAL
INTERRUPT?
Y
N
EXTERNAL OSCILLATOR ACTIVE
AND INTERNAL TIMER CLOCK
ACTIVE
RESTART INTERNAL
PROCESSOR CLOCK
STOP INTERNAL PROCESSOR
CLOCK, CLEAR I BIT IN CCR,
AND SET IRQE IN ISCR
TIMER
INTERNAL
INTERRUPT?
Y
N
EXTERNAL
RESET?
Y
N
STOP
HALT
EXTERNAL
RESET?
Y
N
IRQ
EXTERNAL
INTERRUPT?
Y
N
STOP INTERNAL PROCESSOR
CLOCK, CLEAR I BIT IN CCR,
AND SET IRQE IN ISCR
EXTERNAL OSCILLATOR ACTIVE
AND INTERNAL TIMER CLOCK
ACTIVE
TIMER
INTERNAL
INTERRUPT?
Y
N
MASK
OPTION TO
HALT?
Y
N
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