- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄382551 > ST6265BN6 (意法半導(dǎo)體) 8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI PDF資料下載
參數(shù)資料
| 型號： | ST6265BN6 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI |
| 中文描述： | 8位檢察官辦公室/存儲器與阿微控制器/ D轉(zhuǎn)換器，安全復(fù)位，自動重加載定時器，EEPROM和的SPI |
| 文件頁數(shù)： | 21/74頁 |
| 文件大小： | 538K |
| 代理商： | ST6265BN6 |
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頁當(dāng)前第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
21/74
ST62T55B ST62T65B/E65B
RESETS
(Cont’d)
3.2.3 Watchdog Reset
The MCU provides a Watchdog timer function in
order to ensure graceful recovery from software
upsets. If the Watchdog register is not refreshed
before an end-of-count condition is reached, the
internal reset will be activated. This, amongst oth-
er things, resets the watchdog counter.
The MCU restarts just as though the Reset had
been generated by the RESET pin, including the
built-in stabilisation delay period.
3.2.4 Application Notes
No external resistor is required between V
DD
and
the Reset pin, thanks to the built-in pull-up device.
The POR circuit operates dynamically, in that it
triggers MCU initialization on detecting the rising
edge of V
DD
. The typical threshold is in the region
of 2 volts, but the actual value of the detected
threshold depends on the way in which V
DD
rises.
The POR circuit is NOT designed to supervise
static, or slowly rising or falling V
DD
.
3.2.5 MCU Initialization Sequence
When a reset occurs the stack is reset, the PC is
loaded with the address of the Reset Vector (locat-
ed in program ROM starting at address 0FFEh). A
jump to the beginning of the user program must be
coded at this address. Following a Reset, the In-
terrupt flag is automatically set, so that the CPU is
Figure 12. . Reset Block Diagram
in Non Maskable Interrupt mode; this prevents the
initialisation routine from being interrupted. The in-
itialisation routine should therefore be terminated
by a RETI instruction, in order to revert to normal
mode and enable interrupts. If no pending interrupt
is present at the end of the initialisation routine, the
MCU will continue by processing the instruction
immediately following the RETI instruction. If, how-
ever, a pending interrupt is present, it will be serv-
iced.
Figure 11.. Reset and Interrupt Processing
RESET
RESET
VECTOR
JP
JP:2 BYTES/4 CYCLES
RETI
RETI:1 BYTE/2 CYCLES
INITIALIZATION
ROUTINE
VA00181
V
DD
RESET
300k
2.8k
POWER
WATCHDOG RESET
CK
COUNTER
RESET
ST6
INTERNAL
RESET
f
OSC
RESET
ON RESET
VA0200B
21
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| st62E18C | 8-Bit MCUs with A/D Converter, Auto-Reload Timer, UART, OSG, Safe Reset and 20-Pin Package(8位微控制器(8M)) |
| ST62T60CM6 | IC-SM-8-BIT MCU 4K OTP |
| ST62T60C | 8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI |
| ST62T63C | 8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI |
| ST63E69 | 8-Bit EPROM HCMOS MCUs For Digital Controlled Multi Frequency Monitor(應(yīng)用于數(shù)字控制的多頻顯示器的8位EPROM HCMOS微控制器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST6265BN6/XXX | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8-BIT OTP/EPROM MCUs WITH A/D CONVERTER, SAFE RESET, AUTO-RELOAD TIMER, EEPROM AND SPI |
| ST6265C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-BIT MICROCONTROLLER ( MCU ) WITH OTP. ROM. FASTROM. EPROM. A/D CONVERTER. SAFE RESET. AUTO-RELOAD TIMER. EEPROM AND SPI |
| ST626X | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8/16-Bit Micros |
| ST626XC-KIT | 制造商:STMicroelectronics 功能描述:ST625X, 6X KIT - Bulk |
| ST626XC-KIT/EU | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DEVELOPMENT KIT ST626 EURO |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。