参数资料
型号: MC68HC705K1CDW
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO16
封装: SOIC-16
文件页数: 98/140页
文件大小: 3196K
代理商: MC68HC705K1CDW
Technical Data
MC68HC705K1 — Rev. 2.0
Low-Power Modes
Low-Power Modes
Figure 6-1. Stop/Wait/Halt Flowchart
STOP
SWAIT
BIT SET?
CLEAR I BIT IN CCR
SET IRQE BIT IN ISCR
CLEAR TOF, RTIF, TOIE, AND RTIE BITS IN TSCR
TURN OFF INTERNAL OSCILLATOR
EXTERNAL
RESET?
EXTERNAL
INTERRUPT?
NO
TURN ON INTERNAL OSCILLATOR
RESET STABILIZATION TIMER
YES
HALT
YES
END OF
STABILIZATION
DELAY?
YES
NO
YES
NO
COP
RESET?
TIMER
INTERRUPT?
EXTERNAL
INTERRUPT?
EXTERNAL
RESET?
CLEAR I BIT IN CCR
SET IRQE BIT IN ISCR
TURN OFF CPU CLOCK
TIMER CLOCK ACTIVE
YES
WAIT
YES
NO
COP
RESET?
TIMER
INTERRUPT?
EXTERNAL
INTERRUPT?
EXTERNAL
RESET?
CLEAR I BIT IN CCR
SET IRQE BIT IN ISCR
TURN OFF CPU CLOCK
TIMER CLOCK ACTIVE
YES
NO
TURN ON CPU CLOCK
1. LOAD PC WITH RESET VECTOR
OR
2. SERVICE INTERRUPT
a. SAVE CPU REGISTERS ON STACK
b. SET I BIT IN CCR
c. LOAD PC WITH INTERRUPT VECTOR
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相关PDF资料
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