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| 型号： | MCF5275CVM166 |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 166 MHz, RISC PROCESSOR, PBGA256 |
| 封装： | ROHS COMPLIANT, PLASTIC, MAPBGA-256 |
| 文件页数： | 4/44页 |
| 文件大小： | 980K |
| 代理商： | MCF5275CVM166 |
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MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 4
Design Recommendations
Freescale Semiconductor
12
5.7
Interface Recommendations
5.7.1
DDR SDRAM Controller
5.7.1.1
SDRAM Controller Signals in Synchronous Mode
Table 3 shows the behavior of SDRAM signals in synchronous mode.
5.7.1.2
Address Multiplexing
See the SDRAM controller module chapter in the MCF5275 Reference Manual for details on address
multiplexing.
5.7.2
Ethernet PHY Transceiver Connection
The FEC supports an MII interface for 10/100 Mbps Ethernet and a seven-wire serial interface for 10 Mbps
Ethernet. The interface mode is selected by R_CNTRL[MII_MODE]. In MII mode, the 802.3 standard
defines and the FEC module supports 18 signals. These are shown in Table 4.
Table 3. Synchronous DRAM Signal Connections
Signal
Description
SD_SRAS
Synchronous row address strobe. Indicates a valid SDRAM row address is present and can be
latched by the SDRAM. SD_SRAS should be connected to the corresponding SDRAM
SD_SRAS. Do not confuse SD_SRAS with the DRAM controller’s SDRAM_CS[1:0], which
should not be interfaced to the SDRAM SD_SRAS signals.
SD_SCAS
Synchronous column address strobe. Indicates a valid column address is present and can be
latched by the SDRAM. SD_SCAS should be connected to the corresponding signal labeled
SD_SCAS on the SDRAM.
SD_WE
DRAM read/write. Asserted for write operations and negated for read operations.
SD_CS[1:0]
Row address strobe. Select each memory block of SDRAMs connected to the MCF5275. One
SDRAM_CS signal selects one SDRAM block and connects to the corresponding CS signals.
SD_CKE
Synchronous DRAM clock enable. Connected directly to the CKE (clock enable) signal of
SDRAMs. Enables and disables the clock internal to SDRAM. When CKE is low, memory can
enter a power-down mode where operations are suspended or they can enter self-refresh
mode. SD_CKE functionality is controlled by DCR[COC]. For designs using external
multiplexing, setting COC allows SD_CKE to provide command-bit functionality.
BS[3:2]
Column address strobe. For synchronous operation, BS[3:2] function as byte enables to the
SDRAMs. They connect to the DQM signals (or mask qualifiers) of the SDRAMs.
DDR_CLKOUT
Bus clock output. Connects to the CLK input of SDRAMs.
Table 4. MII Mode
Signal Description
MCF5275 Pin
Transmit clock
FECn_TXCLK
Transmit enable
FECn_TXEN
Transmit data
FECn_TXD[3:0]
Transmit error
FECn_TXER
Because
of
an
order
from
the
United
States
International
Trade
Commission,
BGA-packaged
product
lines
and
part
numbers
indicated
here
currently
are
not
available
from
Freescale
for
import
or
sale
in
the
United
States
prior
to
September
2010:
M5275EVB,
MCF5274CVM166,
MCF5274LCVM166,
MCF5274LVM166,
MCF5274VM166,
MCF5275CVM166,
MCF5275LCVM166
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MCF5275CVM166 | 制造商:Freescale Semiconductor 功能描述:Microprocessor IC |
| MCF5275CVM166J | 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 |
| MCF5275LCVM133 | 功能描述:IC MCU 32BIT 133MHZ 196-MAPBGA RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:MCF527x 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN，SCI，SPI 外围设备:POR，PWM，温度传感器，WDT 输入/输出数:21 程序存储器容量:40KB（20K x 16） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323 |
| MCF5275LCVM166 | 功能描述:微处理器 - MPU MCF5275L V2CORE 64KSRAM 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 |
| MCF5275LCVM166J | 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 |
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