參數資料
型號: MC68HC05F4FB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數: 112/130頁
文件大?。?/td> 10504K
代理商: MC68HC05F4FB
8-8
MC68HC05F4
RESETS AND INTERRUPTS
8
8.2.4
Hardware controlled interrupt sequence
The following three functions (RESET, STOP, and WAIT) are not in the strictest sense interrupts.
However, they are acted upon in a similar manner. Flowcharts for STOP and WAIT are shown in
RESET: A reset condition causes the program to vector to its starting address, which is contained
in memory locations $3FFE (MSB) and $3FFF (LSB). The I-bit in the condition code register is
also set, to disable interrupts.
STOP: The STOP instruction causes the oscillator to be turned off and the processor to ‘sleep’
until an external interrupt (IRQ), a low voltage interrupt (LVI) or a keyboard interrupt occurs, or the
device is reset.
WAIT: The WAIT instruction causes all processor clocks to stop, but leaves the timer clocks
running. This ‘rest’ state of the processor can be cleared by reset, an external interrupt (IRQ), a
keyboard interrupt, a timer interrupt (core or 16-bit) or an LVI interrupt. There are no special WAIT
vectors for these interrupts.
TPG
78
05F4Book Page 8 Tuesday, August 5, 1997 1:10 pm
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關PDF資料
PDF描述
MC68HC05F4CDW 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PDSO28
MC68HC705G4 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP80
MC68HC05G3 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
MC68HC705J5ACJP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP16
MC68HC705J5ACP 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
相關代理商/技術參數
參數描述
MC68HC05F5 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05F6 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:MCU with DTMF/melody generator
MC68HC05F6P 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
MC68HC05F8 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor(HCMOS) microcontroller unit
MC68HC05J1 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:HCMOS MICROCONTROLLER UNIT