参数资料
型号: TMR320R2812ZHHA
厂商: Texas Instruments, Inc.
元件分类: 圆形连接器
英文描述: Circular Connector; MIL SPEC:MIL-DTL-38999 Series III; Body Material:Metal; Series:D38999 Series III; No. of Contacts:6; Connector Shell Size:9; Connecting Termination:Crimp; Circular Shell Style:Jam Nut Receptacle RoHS Compliant: No
中文描述: TMS320R2811,TMS320R2812数字信号处理器
文件页数: 104/147页
文件大小: 2021K
代理商: TMR320R2812ZHHA
Electrical Specifications
104
June 2004
SPRS257
6.18
General-Purpose Input/Output (GPIO)
Input Timing
GPIO
Signal
1
Sampling Window
QUALPRD
Output From
Qualifier
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
SYSCLKOUT
QUALPRD = 1
(2 x SYSCLKOUT cycles) x 5
NOTES: A. This glitch will be ignored by the input qualifier. The QUALPRD bit field specifies the qualification sampling period. It can vary
from 00 to 0xFF. Input qualification is not applicable when QUALPRD = 00. For any other value “n”, the qualification sampling
period in 2n SYSCLKOUT cycles (i.e., at every 2n SYSCLKOUT cycle, the GPIO pin will be sampled). Six consecutive samples
must be of the same value for a given input to be recognized.
B. For the qualifier to detect the change, the input should be stable for 10 SYSCLKOUT cycles or greater. In other words, the inputs
should be stable for (5 x QUALPRD x 2) SYSCLKOUT cycles. This would ensure six sampling windows for detection to occur.
Since external signals are driven asynchronously, an 11-SYSCLKOUT-wide pulse ensures reliable recognition.
See Note A
Figure 6
19. GPIO Input Qualifier
Example Diagram for QUALPRD = 1
Table 6
19. General-Purpose Input Timing Requirements
MIN
MAX
UNIT
t
w(GPI)
Pulse duration GPIO low/high
Pulse duration, GPIO low/high
All GPIOs
With no qualifier
2 * t
c(SCO)
cycles
With qualifier
1 * t
c(SCO)
+ IQT
Input Qualification Time (IQT) = [5 x QUALPRD x 2] * t
c(SCO)
GPIOxn
XCLKOUT
t
w(GPI)
Figure 6
20. General-Purpose Input Timing
NOTE:
The pulse width requirement for general-purpose input is applicable for the XBIO and ADCSOC
pins as well.
A
相关PDF资料
PDF描述
TMR320R2812ZHHQ TMS320R2811, TMS320R2812 Digital Signal Processors
TMR320R2812ZHHS TMS320R2811, TMS320R2812 Digital Signal Processors
TMP320C2812PBKS TMS320R2811, TMS320R2812 Digital Signal Processors
TMP320C2812PGFA TMS320R2811, TMS320R2812 Digital Signal Processors
TMP320C2812PGFQ TMS320R2811, TMS320R2812 Digital Signal Processors
相关代理商/技术参数
参数描述
TMR320R2812ZHHQ 制造商:TI 制造商全称:Texas Instruments 功能描述:TMS320R2811, TMS320R2812 Digital Signal Processors
TMR320R2812ZHHS 制造商:TI 制造商全称:Texas Instruments 功能描述:TMS320R2811, TMS320R2812 Digital Signal Processors
TMR3-2410 制造商:Traco Power 功能描述:
TMR3-2410-HI 制造商:Traco Power 功能描述:DC/DC converter,Isolated,3.3V,700mA,2.3W
TMR3-2410WI 制造商:Traco Power 功能描述:Bulk