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參數(shù)資料
| 型號： | P89LPC915HDH |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| 中文描述： | 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDSO14 |
| 封裝： | PLASTIC,MO-153, SOT402-1, TSSOP-14 |
| 文件頁數(shù)： | 45/72頁 |
| 文件大?。?/td> | 344K |
| 代理商： | P89LPC915HDH |
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Philips Semiconductors
P89LPC915/916/917
8-bit microcontrollers with accelerated two-clock 80C51 core
Product data
Rev. 04 — 17 December 2004
45 of 72
9397 750 14397
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.18.7
Break detect
Break detect is reported in the status register (SSTAT). A break is detected when
11 consecutive bits are sensed LOW. The break detect can be used to reset the
device.
9.18.8
Double buffering
The UART has a transmit double buffer that allows buffering of the next character to
be written to SBUF while the first character is being transmitted. Double buffering
allows transmission of a string of characters with only one stop bit between any two
characters, as long as the next character is written between the start bit and the stop
bit of the previous character.
Double buffering can be disabled. If disabled (DBMOD, i.e., SSTAT.7 = 0), the UART
is compatible with the conventional 80C51 UART. If enabled, the UART allows writing
to SnBUF while the previous data is being shifted out. Double buffering is only
allowed in Modes 1, 2 and 3. When operated in Mode 0, double buffering must be
disabled (DBMOD = 0).
9.18.9
Transmit interrupts with double buffering enabled (Modes 1, 2 and 3)
Unlike the conventional UART, in double buffering mode, the Tx interrupt is generated
when the double buffer is ready to receive new data.
9.18.10
The 9
th
bit (bit 8) in double buffering (Modes 1, 2 and 3)
If double buffering is disabled TB8 can be written before or after SBUF is written, as
long as TB8 is updated some time before that bit is shifted out. TB8 must not be
changed until the bit is shifted out, as indicated by the Tx interrupt.
If double buffering is enabled, TB8
must
be updated before SBUF is written, as TB8
will be double-buffered together with SBUF data.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC915HDH,129 | 功能描述:8位微控制器 -MCU 8B MCU 80C51 2KB 3V FL 8B A/D CONVRT RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
| P89LPC916 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter |
| P89LPC9161 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9161FDH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core, 2 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9161FDH,129 | 功能描述:8位微控制器 -MCU IC 80C51 MCU FLASH 2KB RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT |
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