欢迎访问ic37.com |
会员登录 免费注册
发布采购

TMS320F2809 参数 Datasheet PDF下载

TMS320F2809图片预览
型号: TMS320F2809
PDF下载: 下载PDF文件 查看货源
内容描述: - 12号的铝制车身绘( RAL 7032 ) []
分类和应用:
文件页数/大小: 134 页 / 1127 K
品牌: TI [ TEXAS INSTRUMENTS ]
 浏览型号TMS320F2809的Datasheet PDF文件第89页浏览型号TMS320F2809的Datasheet PDF文件第90页浏览型号TMS320F2809的Datasheet PDF文件第91页浏览型号TMS320F2809的Datasheet PDF文件第92页浏览型号TMS320F2809的Datasheet PDF文件第94页浏览型号TMS320F2809的Datasheet PDF文件第95页浏览型号TMS320F2809的Datasheet PDF文件第96页浏览型号TMS320F2809的Datasheet PDF文件第97页  
TMS320F2809, TMS320F2808, TMS320F2806  
TMS320F2802, TMS320F2801, UCD9501  
TMS320C2802, TMS320C2801, and TMS320F2801x DSPs  
www.ti.com  
SPRS230HOCTOBER 2003REVISED JUNE 2006  
6.4.1 Reducing Current Consumption  
280x devices have a richer peripheral mix compared to the 281x family. While the McBSP has been  
removed, the following new peripherals have been added on the 280x:  
3 SPI modules  
1 CAN module  
1 I2C module  
The two event manager modules of the 281x have been enhanced and replaced with separate ePWM (6),  
eCAP (4) and eQEP (2) modules, providing tremendous flexibility in applications. Like 281x, 280x DSPs  
incorporate a unique method to reduce the device current consumption. Since each peripheral unit has an  
individual clock-enable bit, significant reduction in current consumption can be achieved by turning off the  
clock to any peripheral module that is not used in a given application. Furthermore, any one of the three  
low-power modes could be taken advantage of to reduce the current consumption even further. Table 6-5  
indicates the typical reduction in current consumption achieved by turning off the clocks.  
Table 6-5. Typical Current Consumption by Various  
Peripherals (at 100 MHz)(1)  
PERIPHERAL  
MODULE  
IDD CURRENT  
REDUCTION (mA)  
ADC  
I2C  
8(2)  
5
eQEP  
ePWM  
eCAP  
SCI  
5
5
2
4
SPI  
5
eCAN  
11  
(1) All peripheral clocks are disabled upon reset. Writing to/reading  
from peripheral registers is possible only after the peripheral clocks  
are turned on.  
(2) This number represents the current drawn by the digital portion of  
the ADC module. Turning off the clock to the ADC module results in  
the elimination of the current drawn by the analog portion of the  
ADC (IDDA18) as well.  
NOTE  
The baseline IDD current (current when the core is executing a dummy loop with no  
peripherals enabled) is 110 mA, typical. To arrive at the IDD current for a given application,  
the current-drawn by the peripherals (enabled by that application) must be added to the  
baseline IDD current.  
Electrical Specifications  
93