參數(shù)資料
型號: TMS320VC5409A-120
英文描述: Fixed-Point DSP
中文描述: 定點DSP
文件頁數(shù): 79/132頁
文件大小: 1707K
代理商: TMS320VC5409A-120
SPRS145G
JULY 2000
REVISED FEBRUARY 2002
79
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
reducing current consumption
240x DSPs incorporate a unique method to reduce the device current consumption. A reduction in current
consumption can be achieved by turning off the clock to any peripheral module which is not used in a given
application. Table 17 indicates the typical reduction in current consumption achieved by turning off the clocks
to various peripherals. Refer to the
TMS320LF/LC240xA DSP Controllers Reference Guide: System and
Peripherals
(literature number SPRU357) for further information on how to turn off the clock to the peripherals.
Table 17. Typical Current Consumption by Various Peripherals (at 40 MHz)
PERIPHERAL MODULE
CURRENT REDUCTION (mA)
CAN
8.4
EVA
6.1
EVB
6.1
ADC
3.7
SCI
1.9
SPI
1.3
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 (ICCA) as well.
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