參數(shù)資料
型號: MSC8144
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
元件分類: 數(shù)字信號處理
英文描述: Quad Core Digital Signal Processor
中文描述: 四核心數(shù)字信號處理器
文件頁數(shù): 62/80頁
文件大?。?/td> 1146K
代理商: MSC8144
MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 1
Freescale Semiconductor
62
Figure 38. SPI AC Timing in Master Mode (Internal Clock)
2.7.13
GPIO Timing
Figure 39
shows the GPIO timing.
Table 51. GPIO Timing
Characteristics
Symbol
Min
Max
Unit
REFCLK edge to GPIO out valid (GPIO out delay time)
REFCLK edge to GPIO out not valid (GPIO out hold time)
REFCLK edge to high impedance on GPIO out
GPIO in valid to REFCLK edge (GPIO in set-up time)
REFCLK edge to GPIO in not valid (GPIO in hold time)
t
GPKHOV
t
GPKHOX
t
GPKHOZ
t
GPIVKH
t
GPIXKH
-
6.9
-
6.2
-
-
ns
ns
ns
ns
ns
1.3
-
3.7
0.5
Figure 39. GPIO Timing
SPICLK (Output)
t
NIIXKH
t
NIKHOX
Input Signals:
SPIMISO
(See Note)
Output Signals:
SPIMOSI
(See Note)
Note:
The clock edge is selectable on SPI.
t
NIIVKH
REFCLK
GPIO
(Output)
GPIO
(Input)
Valid
t
GPKHOZ
High Impedance
t
GPIVKH
t
GPIXKH
t
GPKHOV
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