參數(shù)資料
型號: TMS320F2812GHHMEP
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: Digital Signal Processors
中文描述: 數(shù)字信號處理器
文件頁數(shù): 52/159頁
文件大小: 2084K
代理商: TMS320F2812GHHMEP
Functional Overview
52
March 2004 Revised October 2004
SGUS051A
3.10
External Reference Oscillator Clock Option
The typical specifications for the external quartz crystal for a frequency of 30 MHz are listed below:
Fundamental mode, parallel resonant
C
L
(load capacitance) = 12 pF
C
L1
= C
L2
= 24 pF
C
shunt
= 6 pF
ESR range = 25 to 40
Watchdog Block
3.11
The watchdog block on the F281x and C281x is identical to the one used on the 240x 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 311 shows the various functional blocks within the watchdog module.
/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
NOTE A: The WDRST signal is driven low for 512 OSCCLK cycles.
WDRST
(See Note A)
Internal
Pullup
Figure 311. Watchdog Module
The WDINT signal enables the watchdog to be used as a wakeup from IDLE/STANDBY mode timer.
In STANDBY mode, all peripherals are turned off on the device. The only peripheral that remains functional
is the watchdog. The WATCHDOG module will run off the PLL clock or the oscillator clock. The WDINT signal
is fed to the LPM block so that it can wake the device from STANDBY (if enabled). See Section 3.12,
Low-Power Modes Block, for more details.
相關(guān)PDF資料
PDF描述
TMS0320F2810PBKAEP Digital Signal Processors
TMS20F2810PBKAEP Digital Signal Processors
TMP20F2810PBKAEP Digital Signal Processors
TMS320F2812PGFMEP Digital Signal Processors
TMS320F2810PGFAEP Digital Signal Processors
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320F2812GHHQ 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash 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 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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 安裝風格:SMD/SMT
TMS320F2812GHHS 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash 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 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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 安裝風格:SMD/SMT
TMS320F2812PGFA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash 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 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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 安裝風格:SMD/SMT
TMS320F2812PGFAG4 功能描述:C28x C2000? C28x Fixed-Point Microcontroller IC 32-Bit 150MHz 256KB (128K x 16) FLASH 176-LQFP (24x24) 制造商:texas instruments 系列:C2000?? C28x 定點 包裝:托盤 零件狀態(tài):有效 核心處理器:C28x 核心尺寸:32-位 速度:150MHz 連接性:CAN,EBI/EMI,McBSP,SCI,SPI,UART/USART 外設(shè):DMA,POR,PWM,WDT I/O 數(shù):56 程序存儲容量:256KB(128K x 16) 程序存儲器類型:閃存 EEPROM 容量:- RAM 容量:18K x 16 電壓 - 電源(Vcc/Vdd):1.81 V ~ 2 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 16x12b 振蕩器類型:內(nèi)部 工作溫度:-40°C ~ 85°C(TA) 封裝/外殼:176-LQFP 供應(yīng)商器件封裝:176-LQFP(24x24) 標準包裝:40
TMS320F2812PGFQ 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 32-Bit Digital Sig Controller w/Flash 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 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(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 安裝風格:SMD/SMT