參數(shù)資料
型號: SM320C6416DGADW60
廠商: TEXAS INSTRUMENTS INC
元件分類: 數(shù)字信號處理
英文描述: 64-BIT, 75 MHz, OTHER DSP, CPGA570
封裝: 33 X 33 MM, CERAMIC, FCPGA-570
文件頁數(shù): 33/134頁
文件大?。?/td> 1997K
代理商: SM320C6416DGADW60
SMJ320C6414, SMJ320C6415, SMJ320C6416
FIXEDPOINT DIGITAL SIGNAL PROCESSORS
SGUS050A JANUARY 2004 REVISED MARCH 2004
128
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
GENERAL-PURPOSE INPUT/OUTPUT (GPIO) PORT TIMING
timing requirements for GPIO inputs (see Figure 62)
NO.
MIN
MAX
UNIT
1
tw(GPIH)
Pulse duration, GPIx high
8P*
ns
2
tw(GPIL)
Pulse duration, GPIx low
8P*
ns
*This parameter is not production tested.
P = 1/CPU clock frequency in ns. For example, when running parts at 600 MHz, use P = 1.67 ns.
The pulse width given is sufficient to generate a CPU interrupt or an EDMA event. However, if a user wants to have the DSP recognize the GPIx
changes through software polling of the GPIO register, the GPIx duration must be extended to at least 12P to allow the DSP enough time to access
the GPIO register through the CFGBUS.
switching characteristics over recommended operating conditions for GPIO outputs
(see Figure 62)
NO.
PARAMETER
MIN
MAX
UNIT
3
tw(GPOH)
Pulse duration, GPOx high
32P*
ns
4
tw(GPOL)
Pulse duration, GPOx low
32P*
ns
*This parameter is not production tested.
P = 1/CPU clock frequency in ns. For example, when running parts at 600 MHz, use P = 1.67 ns.
GPIx
GPOx
4
3
2
1
Figure 62. GPIO Port Timing
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