参数资料
型号: MPC8377EVRANG
厂商: Freescale Semiconductor
文件页数: 75/127页
文件大小: 0K
描述: MPU POWERQUICC II PRO 689-PBGA
标准包装: 27
系列: MPC83xx
处理器类型: 32-位 MPC83xx PowerQUICC II Pro
速度: 800MHz
电压: 1.05V
安装类型: 表面贴装
封装/外壳: 689-BBGA 裸露焊盘
供应商设备封装: 689-TEPBGA II(31x31)
包装: 托盘
MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
Freescale Semiconductor
51
This means that data delay should be equal or less than the clock delay in the ideal case where
tSHSCLKL =10 ns:
tDATA_DELAY tCLK_DELAY < 10 6 4
tDATA_DELAY tCLK_DELAY < 0
11.3.1.2
High-Speed Write Meeting Hold (Minimum Delay)
The following equations show how to calculate the allowed skew range between the SD_CLK and
SD_DAT/CMD signals on the PCB.
tCLK_DELAY < tSHSCKL + tSHSKHOX + tDATA_DELAY tIH
Eqn. 13
tCLK_DELAY tDATA_DELAY < tSHSCKL + tSHSKHOX tIH
Eqn. 14
This means that clock can be delayed versus data up to 8 ns (external delay line) in ideal case of
tSHSCLKL =10 ns:
tCLK_DELAY tDATA_DELAY < 10 + 0 2
tCLK_DELAY tDATA_DELAY < 8
11.3.2
High-Speed Input Path (Read)
This figure provides the data and command input timing diagram.
Figure 31. High-Speed Input Path
For the input path, the device eSDHC expects to sample the data 1.5 internal clock cycles after it was
driven by the SD card. Since in this mode the SD card drives the data at the rising edge of the clock, a
sufficient delay to the clock and the data must exist to ensure it will not be sampled at the wrong internal
tCLK_DELAY
Output from the
SD CLK at
the Card Pin
SD Card Pins
tSHSIVKH
Driving
Edge
Sampling
Edge
tOH
tDATA_DELAY
tODLY
tSHSCK (Clock Cycle)
1/2 Cycle
tSHSIXKH
Right Edge
Wrong Edge
(MPC8377E Input Hold)
(MPC8377E Input Setup)
Input at the
MPC8377E Pins
SD CLK at the
MPC8377E Pin
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MPC8377EVRANGA 功能描述:微处理器 - MPU 8377 PBGA ST PbFr W/ENC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324
MPC8377EWLANA 功能描述:开发板和工具包 - 其他处理器 MPC8377EWLANA, KIT RoHS:否 制造商:Freescale Semiconductor 产品:Development Systems 工具用于评估:P3041 核心:e500mc 接口类型:I2C, SPI, USB 工作电源电压:
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MPC8377EZQAFDA 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications
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