參數(shù)資料
型號: MPC5553EVB
廠商: Freescale Semiconductor
文件頁數(shù): 42/68頁
文件大?。?/td> 0K
描述: KIT EVAL MPC5553MZP132
標準包裝: 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
Electrical Characteristics
MPC5553 Microcontroller Data Sheet, Rev. 4
Freescale Semiconductor
47
3.14.2
MII FEC Transmit Signal Timing
FEC_TXD[3:0], FEC_TX_EN, FEC_TX_ER, FEC_TX_CLK
The transmitter functions correctly up to the FEC_TX_CLK maximum frequency of 25 MHz plus one
percent. There is no minimum frequency requirement. In addition, the processor clock frequency must
exceed twice the FEC_TX_CLK frequency.
The transmit outputs (FEC_TXD[3:0], FEC_TX_EN, FEC_TX_ER) can be programmed to transition
from either the rising- or falling-edge of TX_CLK, and the timing is the same in either case. These options
allow the use of non-compliant MII PHYs.
Refer to the Fast Ethernet Controller (FEC) chapter of the device reference manual for details of this option
and how to enable it.
Table 29 lists MII FEC transmit channel timings.
Figure 29 shows MII FEC transmit signal timings listed in Table 29.
Figure 29. MII FEC Transmit Signal Timing Diagram
Table 29. MII FEC Transmit Signal Timing
Spec
Characteristic
Min.
Max
Unit
5
FEC_TX_CLK to FEC_TXD[3:0], FEC_TX_EN, FEC_TX_ER invalid
5
ns
6
FEC_TX_CLK to FEC_TXD[3:0], FEC_TX_EN, FEC_TX_ER valid
25
ns
7
FEC_TX_CLK pulse-width high
35%
65%
FEC_TX_CLK period
8
FEC_TX_CLK pulse-width low
35%
65%
FEC_TX_CLK period
6
FEC_TX_CLK (input)
FEC_TXD[3:0] (outputs)
FEC_TX_EN
FEC_TX_ER
5
7
8
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參數(shù)描述
MPC5553EVBE 功能描述:開發(fā)板和工具包 - 其他處理器 MPC5553MZP132 EVAL Qorivva RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓:
MPC5553EVBE 制造商:Freescale Semiconductor 功能描述:MPC55xxEVB: MPC55xx Evaluation
MPC5553EVBGHS 功能描述:開發(fā)軟件 GREEN HILLS SW Qorivva RoHS:否 制造商:Atollic Inc. 產(chǎn)品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
MPC5553EVBISYS 功能描述:開發(fā)軟件 ISYSTEMS CONTENT Qorivva RoHS:否 制造商:Atollic Inc. 產(chǎn)品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
MPC5553MVF112 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Microcontroller