參數(shù)資料
型號: DSPIC33FJ12MC202T-I/SS
廠商: Microchip Technology
文件頁數(shù): 135/155頁
文件大小: 0K
描述: IC DSPIC MCU/DSP 12K 28SSOP
產(chǎn)品培訓(xùn)模塊: Asynchronous Stimulus
標(biāo)準(zhǔn)包裝: 2,100
系列: dsPIC™ 33F
核心處理器: dsPIC
芯體尺寸: 16-位
速度: 40 MIP
連通性: I²C,IrDA,SPI,UART/USART
外圍設(shè)備: 高級欠壓探測/復(fù)位,電機(jī)控制 PWM,QEI,POR,PWM,WDT
輸入/輸出數(shù): 21
程序存儲器容量: 12KB(12K x 8)
程序存儲器類型: 閃存
RAM 容量: 1K x 8
電壓 - 電源 (Vcc/Vdd): 3 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 6x10b/12b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 28-SSOP(0.209",5.30mm 寬)
包裝: 帶卷 (TR)
80
A/T89C51AC2
4127H–8051–02/08
Figure 44. PCA PWM Mode
PCA Watchdog Timer
An on-board Watchdog timer is available with the PCA to improve system reliability with-
out increasing chip count. Watchdog timers are useful for systems that are sensitive to
noise, power glitches, or electrostatic discharge. Module 4 is the only PCA module that
can be programmed as a Watchdog. However, this module can still be used for other
modes if the Watchdog is not needed. The user pre-loads a 16-bit value in the compare
registers. Just like the other compare modes, this 16-bit value is compared to the PCA
timer value. If a match is allowed to occur, an internal reset will be generated. This will
not cause the RST pin to be driven high.
To hold off the reset, the user has three options:
periodically change the compare value so it will never match the PCA timer,
periodically change the PCA timer value so it will never match the compare values,
or
disable the Watchdog by clearing the WDTE bit before a match occurs and then re-
enable it.
The first two options are more reliable because the Watchdog timer is never disabled as
in the third option. If the program counter ever goes astray, a match will eventually occur
and cause an internal reset. If other PCA modules are being used the second option not
recommended either. Remember, the PCA timer is the time base for all modules;
changing the time base for other modules would not be a good idea. Thus, in most appli-
cations the first solution is the best option.
CL rolls over from FFh TO 00h loads
CCAPnH contents into CCAPnL
CCAPnL
CCAPnH
8-Bit
Comparator
CL (8 bits)
“0”
“1”
CL < CCAPnL
CL > = CCAPnL
CEX
PWMn
CCAPMn.1
ECOMn
CCAPMn.6
相關(guān)PDF資料
PDF描述
PIC18F67J10T-I/PT IC PIC MCU FLASH 64KX16 64TQFP
ADG509FBRNZ IC MULTIPLEXER DUAL 4X1 16SOIC
PIC16C770T-I/SS IC MCU OTP 2KX14 A/D PWM 20SSOP
PIC16LC711-04E/P IC MCU OTP 1KX14 A/D 18DIP
VE-BNF-CU-F2 CONVERTER MOD DC/DC 72V 200W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
dsPIC33FJ16GP101-E/P 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16bit DSC Fam 16MIPS 16KB FL 1KB RAM RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ16GP101-E/SO 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16bit DSC Fam 16MIPS 16KB FL 1KB RAM RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ16GP101-E/SS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16bit DSC Fam 16MIPS 16KB FL 1KB RAM RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ16GP101-I/P 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16bit DSC Fam 16MIPS 16KB FL 1KB RAM RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
dsPIC33FJ16GP101-I/SO 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16bit DSC Fam 16MIPS 16KB FL 1KB RAM RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時(shí)鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時(shí)器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT