參數(shù)資料
型號(hào)： P89LPC913
廠商： NXP Semiconductors N.V.
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位微控制器兩個(gè)小時(shí)80C51的核心具有1KB 3伏閃光的128字節(jié)RAM
文件頁(yè)數(shù)： 30/63頁(yè)
文件大小： 314K
代理商： P89LPC913
Philips Semiconductors
P89LPC912/913/914
8-bit microcontrollers with two-clock 80C51 core
Product data
Rev. 03 — 17 December 2004
30 of 63
9397 750 14468
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
SFR
Special Function Registers. Selected CPU registers and peripheral control and
status registers, accessible only via direct addressing.
CODE
64 kB of Code memory space, accessed as part of program execution and via the
MOVC instruction. The P89LPC912/913/914 has 1 kB of on-chip Code memory.
9.10 Interrupts
The P89LPC912/913/914 uses a four priority level interrupt structure. This allows
great flexibility in controlling the handling of the many interrupt sources.
The P89LPC912 supports 7 interrupt sources: timers 0 and 1, brownout detect,
Watchdog/Real-Time clock, keyboard, comparators 1 and 2, and SPI.
The P89LPC913 and P89LPC914 devices support 10 interrupt sources: timers 0 and
1, serial port Tx, serial port Rx, combined serial port Rx/Tx, brownout detect,
Watchdog/Real-Time clock, keyboard, comparators 1 and 2, and SPI.
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.
9.10.1
External interrupt inputs
The P89LPC912/913/914 has a Keypad Interrupt function. This can be used as an
external interrupt input.
If enabled when the P89LPC912/913/914 is put into Power-down or Idle mode, the
interrupt will cause the processor to wake-up and resume operation. Refer to
Section
9.13 “Power reduction modes”
for details.
相關(guān)PDF資料
PDF描述
P89LPC914 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC914FDH 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM
P89LPC924 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
P89LPC925 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter
P89LPC930 8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89LPC913FDH 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 1K FLASH TSSOP14
P89LPC913FDH,129 功能描述:8位微控制器 -MCU 1K FL/128B RAM/SPI 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
P89LPC913FDH129 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述:
P89LPC913FDH-S 功能描述:8位微控制器 -MCU 1K FL/128B RAM/SPI 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
P89LPC914 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
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