參數(shù)資料
型號: MPC5553EVBGHS
廠商: Freescale Semiconductor
文件頁數(shù): 43/68頁
文件大?。?/td> 0K
描述: KIT EVAL GREEN HILLS SOFTWARE
標(biāo)準(zhǔn)包裝: 1
類型: 微控制器
適用于相關(guān)產(chǎn)品: MPC5553
所含物品: 評估板和演示軟件
相關(guān)產(chǎn)品: MPC5553MZQ132-ND - IC MCU MPC5553 REV A 324-PBGA
MPC5553MZP132-ND - IC MCU MPC5553 REV A 416-PBGA
MPC5553 Microcontroller Data Sheet, Rev. 4
Electrical Characteristics
Freescale Semiconductor
48
3.14.3
MII FEC Asynchronous Inputs Signal Timing
FEC_CRS and FEC_COL
Table 30 lists MII FEC asynchronous input signal timing.
Figure 30 shows MII FEC asynchronous input timing listed in Table 30.
Figure 30. MII FEC Asynchronous Inputs Timing Diagram
3.14.4
MII FEC Serial Management Channel Timing
FEC_MDIO and FEC_MDC
Table 31 lists MII FEC serial management channel timing. The FEC functions correctly with a maximum
FEC_MDC frequency of 2.5 MHz.
Figure 31 shows MII FEC serial management channel timing listed in Table 31.
Table 30. MII FEC Asynchronous Inputs Signal Timing
Spec
Characteristic
Min.
Max
Unit
9
FEC_CRS, FEC_COL minimum pulse width
1.5
FEC_TX_CLK period
Table 31. MII FEC Serial Management Channel Timing
Spec
Characteristic
Min.
Max
Unit
10
FEC_MDC falling-edge to FEC_MDIO output invalid
(minimum propagation delay)
0—
ns
11
FEC_MDC falling-edge to FEC_MDIO output valid
(maximum propagation delay)
—25
ns
12
FEC_MDIO (input) to FEC_MDC rising-edge setup
10
ns
13
FEC_MDIO (input) to FEC_MDC rising-edge hold
0
ns
14
FEC_MDC pulse-width high
40%
60%
FEC_MDC period
15
FEC_MDC pulse-width low
40%
60%
FEC_MDC period
FEC_CRS, FEC_COL
9
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