参数资料
型号: MSC8144E
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 数字信号处理
英文描述: 0-BIT, 150 MHz, OTHER DSP, PBGA783
封装: 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783
文件页数: 59/80页
文件大小: 2284K
代理商: MSC8144E
MSC8144E Quad Core Digital Signal Processor Data Sheet, Rev. 0
Freescale Semiconductor
62
Figure 37. SPI AC Timing in Master Mode (Internal Clock)
2.7.13
GPIO Timing
Figure 38 shows the GPIO timing.
Table 54. GPIO Timing
Characteristics
Symbol
Min
Max
Unit
REFCLK edge to GPIO out valid (GPIO out delay time)
tGPKHOV
-6.9
ns
REFCLK edge to GPIO out not valid (GPIO out hold time)
tGPKHOX
1.3
-
ns
REFCLK edge to high impedance on GPIO out
tGPKHOZ
-6.2
ns
GPIO in valid to REFCLK edge (GPIO in set-up time)
tGPIVKH
3.7
-
ns
REFCLK edge to GPIO in not valid (GPIO in hold time)
tGPIXKH
0.5
-
ns
Figure 38. GPIO Timing
SPICLK (Output)
tNIIXKH
tNIKHOX
Input Signals:
SPIMISO
(See Note)
Output Signals:
SPIMOSI
(See Note)
Note: The clock edge is selectable on SPI.
tNIIVKH
REFCLK
GPIO
(Output)
GPIO
(Input)
Valid
tGPKHOZ
High Impedance
tGPIVKH
tGPIXKH
tGPKHOV
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