- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98069 > S3C1850XX-SM 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO24 PDF資料下載
參數(shù)資料
| 型號： | S3C1850XX-SM |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO24 |
| 封裝： | 0.375 INCH, SOP-24 |
| 文件頁數(shù)： | 8/89頁 |
| 文件大?。?/td> | 323K |
| 代理商： | S3C1850XX-SM |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁當前第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
S3C1850
2-15
RESET
All reset operations are internal in the S3C1850. It has an internal power-on reset circuit consisting of a 7 pF
capacitor and a 1 M
resistor (See Figure 2-17). The controller also contains an auto-reset circuit that resets the
chip every 131,072 oscillator clock cycles (288 ms at a fxx = 455KHz clock frequency). The auto-reset counter is
cleared by the rising edge of a internal P2.0 pin, by HALT, or by the power-on reset pulse (See Figure 2-18).
Therefore, no clocks are sent to the counter and the time-out is suspended in HALT mode. When a reset occurs
during program execution, a transient condition occurs. The PA register is immediately initialized to 0FH. The
PC, however, is not reset to 0H until one instruction cycle later. For example, if PC is 1AH when a reset pulse is
generated, the instruction at 0F1AH is executed, followed by the instruction at 0F00H.
After a reset, approximately 13 msec is needed before program execution proceeds (assuming fxx = 455 kHz
ceramic oscillation).
Upon initialization, registers are set as follows:
PC register to 0 in next instruction cycle
PA and PB registers to 0FH (15th page)
SF and SL registers to 1
HL registers to unknown state
All internal/external output pins (P3.0-P3.3, P2.1-P2.6, P2.9, P2.10, P2.12 and P2.13 except P2.0/REM) to
low.
1 M
VDD
VSS
S3C1850
7 pF
Figure 2-17. S3C1850's Power-on Reset Circuit
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| S3C3410XXX-QA | 32-BIT, MROM, 40 MHz, RISC MICROCONTROLLER, PQFP128 |
| S3C70F2XX-SO | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO32 |
| S3C70F4XX-AV | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDIP30 |
| S3C72M9XX-QA | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP128 |
| S3P72M9-QA | 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PQFP128 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| S3C1860 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:4-bit single-chip CMOS microcontroller |
| S3C2400 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:RISC MICROPROCESSOR |
| S3C2410A | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:32-Bit RISC Microprocessor |
| S3C2410A-20 | 制造商:Samsung Electro-Mechanics 功能描述:Microprocessor, 32 Bit, 272 Pin, Plastic, BGA |
| S3C2410A20-YO80 | 制造商:Samsung Semiconductor 功能描述: 制造商:Samsung Semiconductor 功能描述:200MHz, MMU, NAND Flash Boot Loader, ROM/SRAM/SDRAM Control, STN/TFT LCD Control, Touch Panel Control, MMC/SD Card, USB, 10bit ADC/Lead Free |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。