• <tbody id="unozb"><strike id="unozb"></strike></tbody>
            
    
    
    參數(shù)資料
    型號(hào): TMS320C6711GGU100
    廠商: Texas Instruments, Inc.
    元件分類: 數(shù)字信號(hào)處理
    英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSORS
    中文描述: 定點(diǎn)數(shù)字信號(hào)處理器
    文件頁(yè)數(shù): 44/123頁(yè)
    文件大小: 1205K
    代理商: TMS320C6711GGU100
    第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)當(dāng)前第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)
    www.ti.com
    3.6.2
    Watchdog Block
    /512
    OSCCLK
    WDCR (WDPS(2:0))
    WDCLK
    WDCNTR(7:0)
    WDKEY(7:0)
    Bad Key
    Good Key
    1
    0
    1
    WDCR (WDCHK(2:0))
    Bad
    WDCHK
    Key
    WDCR (WDDIS)
    Clear Counter
    SCSR (WDENINT)
    Watchdog
    Prescaler
    Generate
    Output Pulse
    (512 OSCCLKs)
    8-Bit
    Watchdog
    Counter
    CLR
    WDRST
    WDINT
    Watchdog
    55 + AA
    Key Detector
    XRS
    Core-reset
    WDRST
    (A)
    Internal
    Pullup
    TMS320F2808, TMS320F2806
    TMS320F2801, UCD9501
    Digital Signal Processors
    SPRS230F–OCTOBER 2003–REVISED SEPTEMBER 2005
    Normally, when the input clocks are present, the watchdog counter decrements to initiate a watchdog
    reset or WDINT interrupt. However, when the external input clock fails, the watchdog counter stops
    decrementing (i.e., the watchdog counter does not change with the limp-mode clock). In addition to this,
    the device will be reset and the “Missing Clock Status” (MCLKSTS) bit will be set. These conditions could
    be used by the application firmware to detect the input clock failure and initiate necessary shut-down
    procedure for the system.
    NOTE
    Applications in which the correct CPU operating frequency is absolutely critical should
    implement a mechanism by which the DSP will be held in reset, should the input clocks
    ever fail. For example, an R-C circuit may be used to trigger the XRS pin of the DSP,
    should the capacitor ever get fully charged. An I/O pin may be used to discharge the
    capacitor on a periodic basis to prevent it from getting fully charged. Such a circuit would
    also help in detecting failure of the flash memory and the V
    DD3VFL
    rail.
    The watchdog block on the 280x is similar to the one used on the 240x and 281x devices. The watchdog
    module generates an output pulse, 512 oscillator clocks wide (OSCCLK), whenever the 8-bit watchdog up
    counter has reached its maximum value. To prevent this, the user disables the counter or the software
    must periodically write a 0x55 + 0xAA sequence into the watchdog key register which will reset the
    watchdog counter.
    Figure 3-12
    shows the various functional blocks within the watchdog module.
    A.
    The WDRST signal is driven low for 512 OSCCLK cycles.
    Figure 3-12. Watchdog Module
    The WDINT signal enables the watchdog to be used as a wakeup from IDLE/STANDBY mode.
    44
    Functional Overview
    相關(guān)PDF資料
    PDF描述
    TMS320C6211GGU100 FIXED-POINT DIGITAL SIGNAL PROCESSORS
    TMS320C6211GHKA120 FIXED-POINT DIGITAL SIGNAL PROCESSORS
    TMS320C6211GHKA100 FIXED-POINT DIGITAL SIGNAL PROCESSORS
    TMS320C6202BGFN167 FIXED-POINT DIGITAL SIGNAL PROCESSORS
    TMS320C6711GLSA150 FIXED-POINT DIGITAL SIGNAL PROCESSORS
    相關(guān)代理商/技術(shù)參數(shù)
    參數(shù)描述
    TMS320C6712CGDP150 制造商:Texas Instruments 功能描述:
    TMS320C6712DGDP150 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Floating-Pt Dig Sig Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)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
    TMS320C6712DZDP150 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Floating-Pt Dig Sig Proc RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)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
    TMS320C6712GFN100 功能描述:IC FLOATING POINT DSP 256-BGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - DSP(數(shù)字式信號(hào)處理器) 系列:TMS320C67x 標(biāo)準(zhǔn)包裝:2 系列:StarCore 類型:SC140 內(nèi)核 接口:DSI,以太網(wǎng),RS-232 時(shí)鐘速率:400MHz 非易失內(nèi)存:外部 芯片上RAM:1.436MB 電壓 - 輸入/輸出:3.30V 電壓 - 核心:1.20V 工作溫度:-40°C ~ 105°C 安裝類型:表面貼裝 封裝/外殼:431-BFBGA,F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:431-FCPBGA(20x20) 包裝:托盤
    TMS320C6713BGDP225 功能描述:數(shù)字信號(hào)處理器和控制器 - DSP, DSC Floating-Pt Dig Sig Processors RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲(chǔ)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