參數(shù)資料
型號(hào): TMX320F28044PZS
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號(hào)處理
英文描述: Digital Signal Processor
中文描述: 數(shù)字信號(hào)處理器
文件頁(yè)數(shù): 82/107頁(yè)
文件大?。?/td> 784K
代理商: TMX320F28044PZS
www.ti.com
OSCCLK
SYSCLKOUT
Write to PLLCR
OSCCLK * 2
(Current CPU
Frequency)
OSCCLK/2
(CPU Frequency While PLL is Stabilizing
With the Desired Frequency. This Period
(PLL Lock-up Time, t
p
) is
131072 OSCCLK Cycles Long.)
OSCCLK * 4
(Changed CPU Frequency)
6.9
General-Purpose Input/Output (GPIO)
6.9.1
GPIO - Output Timing
GPIO
t
r(GPO)
t
f(GPO)
TMS320F28044
Digital Signal Processor
SPRS357B–AUGUST 2006–REVISED MAY 2007
Figure 6-6. Example of Effect of Writing Into PLLCR Register
Table 6-10. General-Purpose Output Switching Characteristics
PARAMETER
MIN
MAX
UNIT
ns
ns
MHz
t
r(GPO)
t
f(GPO)
t
fGPO
Rise time, GPIO switching low to high
Fall time, GPIO switching high to low
Toggling frequency, GPO pins
All GPIOs
All GPIOs
8
8
25
Figure 6-7. General-Purpose Output Timing
82
Electrical Specifications
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