- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374690 > SAF-C161S-LM3V (INFINEON TECHNOLOGIES AG) 16-Bit Single-Chip Microcontroller PDF資料下載
參數(shù)資料
| 型號： | SAF-C161S-LM3V |
| 廠商： | INFINEON TECHNOLOGIES AG |
| 英文描述： | 16-Bit Single-Chip Microcontroller |
| 中文描述： | 16位單片機 |
| 文件頁數(shù)： | 28/75頁 |
| 文件大小： | 1315K |
| 代理商： | SAF-C161S-LM3V |
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頁當前第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
C161S
Functional Description
Data Sheet
24
V1.0, 2003-11
3.9
Oscillator Watchdog
The Oscillator Watchdog (OWD) monitors the clock signal generated by the on-chip
oscillator (either with a crystal or via external clock drive). For this operation the PLL
provides a clock signal which is used to supervise transitions on the oscillator clock. This
PLL clock is independent from the XTAL1 clock. When the expected oscillator clock
transitions are missing the OWD activates the PLL Unlock / OWD interrupt node and
supplies the CPU with the PLL clock signal. Under these circumstances the PLL will
oscillate with its basic frequency.
In direct drive mode the PLL base frequency is used directly (
f
CPU
= 2
…
5 MHz).
In prescaler mode the PLL base frequency is divided by 2 (
f
CPU
= 1
…
2.5 MHz).
Note: The CPU clock source is only switched back to the oscillator clock after a
hardware reset.
The oscillator watchdog can be disabled
by setting bit OWDDIS in register SYSCON.
In this case (OWDDIS =
‘
1
’
) the PLL remains idle and provides no clock signal, while the
CPU clock signal is derived directly from the oscillator clock or via prescaler or SDD. Also
no interrupt request will be generated in case of a missing oscillator clock.
Note: At the end of a reset bit OWDDIS reflects the inverted level of pin RD at that time.
Thus the oscillator watchdog may also be disabled via hardware by (externally)
pulling the RD line low upon a reset, similar to the standard reset configuration via
PORT0.
相關PDF資料 |
PDF描述 |
|---|---|
| SAB-C167CS-L16M3V | 16-Bi t Single-Chip Microcontroller |
| SAF-C167CS-L16M3V | 16-Bi t Single-Chip Microcontroller |
| SAB-C501G-1E24N | 8-Bit CMOS Microcontroller |
| SAB-C501G-1R40M | 8-Bit CMOS Microcontroller |
| SAB-C501G-1R40N | 8-Bit CMOS Microcontroller |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SAFC161SLM3VAAXT | 制造商:Infineon Technologies AG 功能描述:MCU 16-Bit C166 CISC/RISC ROMLess 3.3V 80-Pin MQFP |
| SAFC161U | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Embedded C166 with USB, USART and SSC |
| SAF-C161U-LF V1.3 | 功能描述:16位微控制器 - MCU 16BIT SNGLChip MICRO CONTROLLER 3.3V RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時鐘頻率:24 MHz 程序存儲器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風格:SMD/SMT |
| SAF-C161U-LF V1.3T | 制造商:Lantiq 功能描述: |
| SAFC161ULFV1.3 | 制造商:Infineon Technologies AG 功能描述:SP000007502_ISDN_TY_RO |
發(fā)布緊急采購，3分鐘左右您將得到回復。