參數(shù)資料
型號： P89LPC901FD
廠商： NXP SEMICONDUCTORS
元件分類： 微控制器/微處理器
英文描述： 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
中文描述： 8-BIT, FLASH, 18 MHz, MICROCONTROLLER, PDSO8
封裝： 3.90 MM, PLASTIC, MS-012, SOT-96-1, SO-8
文件頁數(shù)： 28/55頁
文件大?。?/td> 1236K
代理商： P89LPC901FD
Philips Semiconductors
P89LPC901/902/903
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 04 — 21 November 2003
28 of 55
9397 750 12293
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
The P89LPC901 supports 6 interrupt sources: timers 0 and 1, brownout detect,
Watchdog/real-time clock, keyboard, and the comparator.
The P89LPC902 supports 6 interrupt sources: timers 0 and 1, brownout detect,
Watchdog/real-time clock, keyboard, and comparators 1 and 2.
The P89LPC903 supports 9 interrupt sources: timers 0 and 1, serial port Tx, serial
port Rx, combined serial port Rx/Tx, brownout detect, Watchdog/real-time clock,
keyboard, and comparators 1 and 2.
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.
8.11.1
External interrupt inputs
The P89LPC901/902/903 has a Keypad Interrupt function. This can be used as an
external interrupt input.
If enabled when the P89LPC901/902/903 is put into Power-down or Idle mode, the
interrupt will cause the processor to wake-up and resume operation. Refer to
Section
8.14 “Power reduction modes”
for details.
相關(guān)PDF資料
PDF描述
P89LPC901FN 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC902 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC902FD 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC902FN 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC903 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LPC901FD,112 功能描述:8位微控制器 -MCU 80C51 1K FL 128B 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
P89LPC901FD112 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 12MHZ SOIC-8
P89LPC901FN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC901FN,129 功能描述:8位微控制器 -MCU 80C51 1K FL 128B 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
P89LPC901FN.129 制造商:NXP Semiconductors 功能描述:8BIT MCU 1K FLASH 89LC901 DIP8 制造商:NXP Semiconductors 功能描述:8BIT MCU 1K FLASH, 89LC901, DIP8
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