參數(shù)資料
型號: P89LPC935FDH,518
廠商: NXP Semiconductors
文件頁數(shù): 32/77頁
文件大?。?/td> 0K
描述: IC 80C51 MCU 8KB FLASH 28TSSOP
標(biāo)準(zhǔn)包裝: 2,500
系列: LPC900
核心處理器: 8051
芯體尺寸: 8-位
速度: 12MHz
連通性: I²C,SPI,UART/USART
外圍設(shè)備: 欠壓檢測/復(fù)位,LED,POR,PWM,WDT
輸入/輸出數(shù): 26
程序存儲器容量: 8KB(8K x 8)
程序存儲器類型: 閃存
EEPROM 大?。?/td> 512 x 8
RAM 容量: 768 x 8
電壓 - 電源 (Vcc/Vdd): 2.4 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x8b; D/A 2x8b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-TSSOP(0.173",4.40mm 寬)
包裝: 帶卷 (TR)
P89LPC933_934_935_936
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 8 — 12 January 2011
38 of 77
NXP Semiconductors
P89LPC933/934/935/936
8-bit microcontroller with accelerated two-clock 80C51 core
8.19.9 CCU interrupts
There are seven interrupt sources on the CCU which share a common interrupt vector.
8.20 UART
The P89LPC933/934/935/936 has an enhanced UART that is compatible with the
conventional 80C51 UART except that Timer 2 overflow cannot be used as a baud rate
source. The P89LPC933/934/935/936 does include an independent baud rate generator.
The baud rate can be selected from the oscillator (divided by a constant), Timer 1
overflow, or the independent baud rate generator. In addition to the baud rate generation,
enhancements over the standard 80C51 UART include Framing Error detection,
automatic address recognition, selectable double buffering and several interrupt options.
The UART can be operated in four modes: shift register, 8-bit UART, 9-bit UART, and CPU
clock
32 or CPU
clock
16.
8.20.1 Mode 0
Serial data enters and exits through RXD. TXD outputs the shift clock. 8 bits are
transmitted or received, LSB first. The baud rate is fixed at 1
16 of the CPU clock
frequency.
Fig 13. Capture/compare unit interrupts
002aaa896
interrupt to
CPU
TOIE2 (TICR2.7)
TOIF2 (TIFR2.7)
TICIE2A (TICR2.0)
TICF2A (TIFR2.0)
TICIE2B (TICR2.1)
TICF2B (TIFR2.1)
TOCIE2A (TICR2.3)
TOCF2A (TIFR2.3)
TOCIE2B (TICR2.4)
TOCF2B (TIFR2.4)
TOCIE2C (TICR2.5)
TOCF2C (TIFR2.5)
TOCIE2D (TICR2.6)
TOCF2D (TIFR2.6)
EA (IEN0.7)
ECCU (IEN1.4)
PRIORITY
ENCODER
other
interrupt
sources
ENCINT.0
ENCINT.1
ENCINT.2
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