參數(shù)資料
型號: MPC5646CF0CLU8
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 80 MHz, MICROCONTROLLER, PQFP176
封裝: 24 X 24 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, ROHS COMPLIANT, LQFP-176
文件頁數(shù): 98/115頁
文件大?。?/td> 783K
代理商: MPC5646CF0CLU8
Electrical Characteristics
MPC5646C Microcontroller Datasheet, Rev. 4
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
83
Figure 23. MII async inputs timing diagram
4.18.4
MII Serial Management Channel Timing (MDIO and MDC)
The FEC functions correctly with a maximum MDC frequency of 2.5 MHz.
Table 47. MII serial management channel timing1
1 Output pads configured with SRE = 0b11.
Spec
Characteristic
Min
Max
Unit
M10
MDC falling edge to
MDIO output invalid
(minimum
propagation delay)
0—
ns
M11
MDC falling edge to
MDIO output valid
(max prop delay)
—25
ns
M12
MDIO (input) to MDC
rising edge setup
28
ns
M13
MDIO (input) to MDC
rising edge hold
0—
ns
M14
MDC pulse width
high
40%
60%
MDC period
M15
MDC pulse width low
40%
60%
MDC period
CRS, COL
M9
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