参数资料
型号: MCF5235CVM150
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
封装: ROHS COMPLIANT, MAPBGA-256
文件页数: 33/48页
文件大小: 666K
代理商: MCF5235CVM150
Electrical Characteristics
MCF523x Integrated Microprocessor Hardware Specification, Rev. 4
Freescale Semiconductor
39
7.10.2
MII Transmit Signal Timing (ETXD[3:0], ETXEN, ETXER, ETXCLK)
Table 19 lists MII transmit channel timings.
The transmitter functions correctly up to a ETXCLK maximum frequency of 25 MHz +1%. The processor
clock frequency must exceed twice the ETXCLK frequency.
Figure 20 shows MII transmit signal timings listed in Table 19.
Figure 20. MII Transmit Signal Timing Diagram
7.10.3
MII Async Inputs Signal Timing (ECRS and ECOL)
Table 20 lists MII asynchronous inputs signal timing.
Figure 21 shows MII asynchronous input timings listed in Table 20.
Figure 21. MII Async Inputs Timing Diagram
Table 19. MII Transmit Signal Timing
Num
Characteristic
Min
Max
Unit
M5
ETXCLK to ETXD[3:0], ETXEN, ETXER invalid
5
ns
M6
ETXCLK to ETXD[3:0], ETXEN, ETXER valid
25
ns
M7
ETXCLK pulse width high
35%
65%
ETXCLK period
M8
ETXCLK pulse width low
35%
65%
ETXCLK period
Table 20. MII Async Inputs Signal Timing
Num
Characteristic
Min
Max
Unit
M9
ECRS, ECOL minimum pulse width
1.5
ETXCLK period
M6
ETXCLK (input)
ETXD[3:0] (outputs)
ETXEN
ETXER
M5
M7
M8
ECRS, ECOL
M9
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相关代理商/技术参数
参数描述
MCF5235CVM150 制造商:Freescale Semiconductor 功能描述:Microprocessor IC
MCF5235CVM150J 功能描述:32位微控制器 - MCU V2CORE 64KSRAM 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
MCF5235CVM150J 制造商:Freescale Semiconductor 功能描述:IC 32-BIT MPU 150 MHz 256-BGA
MCF5235EC 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Microprocessor Hardware Specification
MCF523X 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:Integrated Microprocessor Hardware Specification