參數(shù)資料
型號: AT89C51AC2-SLSUM
廠商: Atmel
文件頁數(shù): 96/121頁
文件大小: 0K
描述: IC 8051 MCU FLASH 32K 44PLCC
產(chǎn)品培訓(xùn)模塊: MCU Product Line Introduction
標(biāo)準(zhǔn)包裝: 972
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: UART/USART
外圍設(shè)備: POR,PWM,WDT
輸入/輸出數(shù): 34
程序存儲器容量: 32KB(32K x 8)
程序存儲器類型: 閃存
EEPROM 大小: 2K x 8
RAM 容量: 1.25K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 8x10b
振蕩器型: 外部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LCC(J 形引線)
包裝: 管件
76
A/T89C51AC2
4127H–8051–02/08
Figure 39. PCA Timer/Counter
The CMOD register includes three additional bits associated with the PCA.
The CIDL bit which allows the PCA to stop during idle mode.
The WDTE bit which enables or disables the Watchdog function on module 4.
The ECF bit which when set causes an interrupt and the PCA overflow flag CF in
CCON register to be set when the PCA timer overflows.
The CCON register contains the run control bit for the PCA and the flags for the PCA
timer and each module.
The CR bit must be set to run the PCA. The PCA is shut off by clearing this bit.
The CF bit is set when the PCA counter overflows and an interrupt will be generated
if the ECF bit in CMOD register is set. The CF bit can only be cleared by software.
The CCF0:4 bits are the flags for the modules (CCF0 for module0...) and are set by
hardware when either a match or a capture occurs. These flags also can be cleared
by software.
PCA Modules
Each one of the five compare/capture modules has six possible functions. It can
perform:
16-bit Capture, positive-edge triggered
16-bit Capture, negative-edge triggered
16-bit Capture, both positive and negative-edge triggered
16-bit Software Timer
16-bit High Speed Output
8-bit Pulse Width Modulator.
In addition module 4 can be used as a Watchdog Timer.
CIDL
CPS1 CPS0
ECF
It
CH
CL
16 bit up counter
To PCA
modules
FPca/6
FPca/2
T0 OVF
P1.2
Idle
CMOD
0xD9
WDTE
CF
CR
CCON
0xD8
CCF4 CCF3 CCF2 CCF1 CCF0
overflow
相關(guān)PDF資料
PDF描述
VI-B2H-IY-F1 CONVERTER MOD DC/DC 52V 50W
VJ2225A561JBEAT4X CAP CER 560PF 500V 5% NP0 2225
VI-B24-IY-F4 CONVERTER MOD DC/DC 48V 50W
VJ2225A561JBLAT4X CAP CER 560PF 630V 5% NP0 2225
VI-J1Y-IY-F1 CONVERTER MOD DC/DC 3.3V 33W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AT89C51AC3 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with 64KB Flash Memory
AT89C51AC3_04 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Microcontrollers
AT89C51AC3_05 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with 64KB Flash Memory
AT89C51AC3_08 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Enhanced 8-bit Microcontroller with 64KB Flash Memory
AT89C51AC3-RDTIM 功能描述:IC 8051 MCU FLASH 64K 64VQFP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:89C 標(biāo)準(zhǔn)包裝:1,500 系列:AVR® ATtiny 核心處理器:AVR 芯體尺寸:8-位 速度:16MHz 連通性:I²C,LIN,SPI,UART/USART,USI 外圍設(shè)備:欠壓檢測/復(fù)位,POR,PWM,溫度傳感器,WDT 輸入/輸出數(shù):16 程序存儲器容量:8KB(4K x 16) 程序存儲器類型:閃存 EEPROM 大小:512 x 8 RAM 容量:512 x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 11x10b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 125°C 封裝/外殼:20-SOIC(0.295",7.50mm 寬) 包裝:帶卷 (TR)