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參數(shù)資料
| 型號(hào)： | P89LPC917 |
| 廠商： | NXP Semiconductors N.V. |
| 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 - 8加速雙位單片機(jī)80C51的時(shí)鐘核心2 Kb的3伏閃存位A / D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 36/72頁 |
| 文件大小： | 344K |
| 代理商： | P89LPC917 |
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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
36 of 72
9397 750 14397
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
The P89LPC916supports 14 interrupt sources: external interrupt 0, timers 0 and 1,
serial port Tx, serial port Rx, combined serial port Rx and Tx, brownout detect,
Watchdog/Real-Time clock, I2C, keyboard, comparators 1 and 2, SPI, and the A/D
converter.
Each interrupt source can be individually enabled or disabled by setting or clearing a
bit in the interrupt enable registers IEN0 or IEN1. The IEN0 register also contains a
global disable bit, EA, which disables all interrupts.
Each interrupt source can be individually programmed to one of four priority levels by
setting or clearing bits in the interrupt priority registers IP0, IP0H, IP1, and IP1H. An
interrupt service routine in progress can be interrupted by a higher priority interrupt,
but not by another interrupt of the same or lower priority. The highest priority interrupt
service cannot be interrupted by any other interrupt source. If two requests of
different priority levels are pending at the start of an instruction, the request of higher
priority level is serviced.
If requests of the same priority level are pending at the start of an instruction, an
internal polling sequence determines which request is serviced. This is called the
arbitration ranking. Note that the arbitration ranking is only used to resolve pending
requests of the same priority level.
9.11.1
External interrupt inputs
The P89LPC915 and P89LPC917 have two external interrupt inputs as well as the
Keypad Interrupt function. The P89LPC916 has one external interrupt input as well as
the Keypad Interrupt function These external interrupt inputs are identical to those
present on the standard 80C51 microcontrollers.
These external interrupts can be programmed to be level-triggered or edge-triggered
by setting or clearing bit IT1 or IT0 in Register TCON.
In edge-triggered mode, if successive samples of the INTn pin show a HIGH in one
cycle and a LOW in the next cycle, the interrupt request flag IEn in TCON is set,
causing an interrupt request.
If an external interrupt is enabled when the P89LPC915/916/917 is put into
Power-down or Idle mode, the interrupt will cause the processor to wake-up and
resume operation. Refer to
Section 9.14 “Power reduction modes”
for details.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| P89LPC9171 | 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 |
| P89LPC9171FDH | 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 |
| P89LPC9171FDH,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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
| P89LPC917FDH | 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 2K FLASH TSSOP16 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 2K FLASH, TSSOP16 |
| P89LPC917FDH,129 | 功能描述:8位微控制器 -MCU 80C51 2K FL 256B RAM 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(shí)鐘頻率:50 MHz 程序存儲(chǔ)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(fēng)格:SMD/SMT |
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