參數(shù)資料
型號: TMS32C6411GLSA6E3
廠商: Texas Instruments, Inc.
元件分類: 數(shù)字信號處理
英文描述: FIXED-POINT DIGITAL SIGNAL PROCESSORS
中文描述: 定點(diǎn)數(shù)字信號處理器
文件頁數(shù): 131/141頁
文件大?。?/td> 2234K
代理商: TMS32C6411GLSA6E3
TMS320C6414, TMS320C6415, TMS320C6416
FIXED-POINT DIGITAL SIGNAL PROCESSORS
SPRS146L
FEBRUARY 2001
REVISED JULY 2004
131
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
GENERAL-PURPOSE INPUT/OUTPUT (GPIO) PORT TIMING
timing requirements for GPIO inputs
(see Figure 62)
NO.
5E0, A
5E0,
6E3, A
6E3,
7E3
UNIT
MIN
8P
8P
MAX
1
2
t
w(GPIH)
t
w(GPIL)
Pulse duration, GPIx high
Pulse duration, GPIx low
ns
ns
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
5E0, A
5E0,
6E3, A
6E3,
7E3
UNIT
MIN
MAX
3
4
t
w(GPOH)
t
w(GPOL)
Pulse duration, GPOx high
Pulse duration, GPOx low
24P
8
24P
8
ns
ns
P = 1/CPU clock frequency in ns. For example, when running parts at 600 MHz, use P = 1.67 ns.
This parameter value should not be used as a maximum performance specification. Actual performance of back-to-back accesses of the GPIO
is dependent upon internal bus activity.
GPIx
GPOx
4
3
2
1
Figure 62. GPIO Port Timing
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