- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376153 > MC80F0224Q (Electronic Theatre Controls, Inc.) 8-BIT SINGLE-CHIP MICROCONTROLLERS PDF資料下載
參數(shù)資料
| 型號(hào)： | MC80F0224Q |
| 廠商： | Electronic Theatre Controls, Inc. |
| 元件分類： | 8位微控制器 |
| 英文描述： | 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| 中文描述： | 8位單晶片微控制器 |
| 文件頁數(shù)： | 108/128頁 |
| 文件大小： | 1408K |
| 代理商： | MC80F0224Q |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁當(dāng)前第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁
MC80F0208/16/24
Preliminary
104
MAR. 2005 Ver 0.2
23. RESET
The MC80F0208/16/24 have four types of reset generation pro-
cedures; they are an external reset input, a watch-dog timer reset,
power fail processor reset, and address fail reset. Table 23-1
shows on-chip hardware initialization by reset action.
Table 23-1 Initializing Internal Status by Reset Action
External Reset Input
The reset input is the RESET pin, which is the input to a Schmitt
Trigger. A reset in accomplished by holding the RESET pin low
for at least 8 oscillator periods, within the operating voltage range
and oscillation stable, it is applied, and the internal state is initial-
ized. After reset, 65.5ms (at 4 MHz) add with 7 oscillator periods
are required to start execution as shown in Figure 23-2.
Internal RAM is not affected by reset. When V
DD
is turned on,
the RAM content is indeterminate. Therefore, this RAM should
be initialized before read or tested it.
When the RESET pin input goes to high, the reset operation is re-
leased and the program execution starts at the vector address
stored at addresses FFFE
H
- FFFF
H
.
A connection for simple power-on-reset is shown in Figure 23-1.
Figure 23-1 Simple Power-on-Reset Circuit
Figure 23-2 Timing Diagram after Reset
Address Fail Reset
The Address Fail Reset is the function to reset the system by
checking code access of abnormal and unwished address caused
by erroneous program code itself or external noise, which could
not be returned to normal operation and would become malfunc-
tion state. If the CPU tries to fetch the instruction from ineffective
code area or RAM area, the address fail reset is occurred. Please
refer to Figure 11-2 for setting address fail option.
On-chip Hardware
Initial Value
On-chip Hardware
Initial Value
Program counter
(PC)
(FFFF
H
) - (FFFE
H
)
Peripheral clock
Off
RAM page register
(RPR)
0
Watchdog timer
Disable
G-flag
(G)
0
Control registers
Refer to Table 8-1 on page 27
Operation mode
Main-frequency clock
Power fail detector
Disable
7036P
V
CC
10uF
+
10k
to the RESET pin
MAIN PROGRAM
Oscillator
(X
IN
pin)
FFFE FFFF
Stabilization Time
t
ST
=65.5mS at 4MHz
RESET
ADDRESS
BUS
DATA
BUS
1
2
3
4
5
6
7
Start
FE
ADL
ADH
OP
Reset Process Step
~
~
~
~
~
~
t
ST
=
x 256
f
XIN
÷
1024
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC88A | 8 TUNES 8 KEY WITH SCAN KEY |
| MC971 | For High Speed Swiching Application Silicon Epitaxial Type(Common Cathode) |
| MCA-15 | 15W Ultraminiature Modular Switching Power Supplies |
| MCA11G1 | HIGH VOLTAGE PHOTODARLINGTON OPTOCOUPLERS |
| MCA11G2 | HIGH VOLTAGE PHOTODARLINGTON OPTOCOUPLERS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC80F0424 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0424K | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0424L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0424Q | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
| MC80F0432 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT SINGLE-CHIP MICROCONTROLLERS |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。