参数资料
型号: SPC5668GF0AVMJ
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 116 MHz, MICROCONTROLLER, PBGA256
封装: 17 X 17 MM, 1 MM PITCH, ROHS COMPLIANT, MAPBGA-256
文件页数: 54/66页
文件大小: 593K
代理商: SPC5668GF0AVMJ
MPC5668x Microcontroller Data Sheet, Rev. 5
Electrical Characteristics
Freescale Semiconductor
58
Figure 26. MII Receive Signal Timing Diagram
4.14.8.2
MII Transmit Signal Timing (TXD[3:0], TX_EN, TX_ER, TX_CLK)
The transmitter functions correctly up to a TX_CLK maximum frequency of 25 MHz +1%. There is no minimum frequency
requirement. In addition, the system clock frequency must exceed four times the TX_CLK frequency.
The transmit outputs (TXD[3:0], TX_EN, 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. This options allows the use of non-compliant MII PHYs.
Refer to the Ethernet chapter for details of this option and how to enable it.
Figure 27. MII Transmit Signal Timing Diagram
Table 34. MII Transmit Signal Timing1
1 Output pads configured with SRC = 0b11.
Spec
Characteristic
Min
Max
Unit
M5
TX_CLK to TXD[3:0], TX_EN, TX_ER invalid
5
ns
M6
TX_CLK to TXD[3:0], TX_EN, TX_ER valid
25
ns
M7
TX_CLK pulse width high
35%
65%
TX_CLK period
M8
TX_CLK pulse width low
35%
65%
TX_CLK period
M1
M2
RX_CLK (input)
RXD[3:0] (inputs)
RX_DV
RX_ER
M3
M4
M6
TX_CLK (input)
TXD[3:0] (outputs)
TX_EN
TX_ER
M5
M7
M8
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相关代理商/技术参数
参数描述
SPC5668GF0AVMJR 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MPC5668x Microcontroller Data Sheet
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SPC5668GF1AMMGR 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:MPC5668x Microcontroller Data Sheet
SPC5668GF1AVMG 功能描述:32位微控制器 - MCU 32BIT2M NVM GATEWAY RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT
SPC5668GF1AVMGR 功能描述:32位微控制器 - MCU 32BIT,2M NVM, GWAY RoHS:否 制造商:Texas Instruments 核心:C28x 处理器系列:TMS320F28x 数据总线宽度:32 bit 最大时钟频率:90 MHz 程序存储器大小:64 KB 数据 RAM 大小:26 KB 片上 ADC:Yes 工作电源电压:2.97 V to 3.63 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:LQFP-80 安装风格:SMD/SMT