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參數(shù)資料
| 型號： | M37548G3FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| 封裝： | 4.40 X 6.50 MM, 0.65 MM PITCH, PLASTIC, LSSOP-20 |
| 文件頁數(shù)： | 44/84頁 |
| 文件大?。?/td> | 1427K |
| 代理商： | M37548G3FP |
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Rev.2.02
Mar 31, 2009
Page 49 of 81
REJ03B0210-0202
7548 Group
Stop mode
When the STP instruction is executed, the internal clock
φ stops
at an “H” level and the XIN/XCIN and on-chip oscillator stops. At
this time, timer 1 is set to “0116” and prescaler 12 is set to “FF16”
when the oscillation stabilization time set bit after release of the
STP instruction is “0”. On the other hand, timer 1 and prescaler
12 are not set when the above bit is “1”. Accordingly, set the wait
time fit for the oscillation stabilization time of the oscillator to be
used. When an external interrupt is accepted, oscillation is
restarted but the internal clock
φ remains at “H” until timer 1
underflows. As soon as timer 1 underflows, the internal clock
φ
is supplied. This is because when a ceramic resonator is used,
some time is required until a start of oscillation. In case
oscillation is restarted by reset, no wait time is generated. So
apply an “L” level to the RESET pin while oscillation becomes
stable, or set the wait time by on-chip oscillator operation after
system is released from reset until the oscillation is stabled.
Wait mode
If the WIT instruction is executed, the internal clock
φ stops at an
“H” level, but the oscillator does not stop. The internal clock
restarts if a reset occurs or when an interrupt is received. Since
the oscillator does not stop, normal operation can be started
immediately after the clock is restarted. To ensure that interrupts
will be received to release the STP or WIT state, interrupt enable
bits must be set to “1” before the STP or WIT instruction is
executed.
Note
For use with the oscillation stabilization set bit after release of
the STP instruction set to “1”, set values in timer 1 and prescaler
12 after fully appreciating the oscillation stabilization time of the
oscillator to be used.
相關PDF資料 |
PDF描述 |
|---|---|
| M37548G1FP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| M37548G2-XXXFP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO20 |
| M37640E8-XXXFP | 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP80 |
| M37702S1ABFP | 16-BIT, 16 MHz, MICROCONTROLLER, PQFP80 |
| M37703E2BSP | 16-BIT, OTPROM, 25 MHz, MICROCONTROLLER, PDIP64 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M37548G3FP#U0 | 功能描述:MCU 6K ROM 256K 20-SSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標準包裝:250 系列:LPC11Uxx 核心處理器:ARM? Cortex?-M0 芯體尺寸:32-位 速度:50MHz 連通性:I²C，Microwire，SPI，SSI，SSP，UART/USART，USB 外圍設備:欠壓檢測/復位，POR，WDT 輸入/輸出數(shù):40 程序存儲器容量:96KB（96K x 8） 程序存儲器類型:閃存 EEPROM 大小:4K x 8 RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):1.8 V ~ 3.6 V 數(shù)據(jù)轉換器:A/D 8x10b 振蕩器型:內部 工作溫度:-40°C ~ 85°C 封裝/外殼:48-LQFP 包裝:托盤 其它名稱:568-9587 |
| M37548G3-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G1FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G1-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37549G2FP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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