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| 型号： | M52259EVB |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 32/46页 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR 52259 COLDFIRE V2 |
| 产品培训模块： | ColdFire MCF5225x |
| 标准包装： | 1 |
| 系列： | ColdFire® |
| 类型： | MCU |
| 适用于相关产品： | MCF52259 |
| 所含物品： | 板，线缆，文档，DVD，闪光灯驱动和电源 |
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Electrical Characteristics
2.9
USB Operation
Table 15. USB Operation Specifications
Characteristic
Minimum core speed for USB operation
Symbol
f sys_USB_min
Value
16
Unit
MHz
2.10
Mini-FlexBus External Interface Specifications
A multi-function external bus interface called Mini-FlexBus is provided with basic functionality to interface to slave-only
devices up to a maximum bus frequency of 80 MHz. It can be directly connected to asynchronous or synchronous devices such
as external boot ROMs, flash memories, gate-array logic, or other simple target (slave) devices with little or no additional
circuitry. For asynchronous devices a simple chip-select based interface can be used.
All processor bus timings are synchronous; that is, input setup/hold and output delay are given in respect to the rising edge of
a reference clock, MB_CLK. The MB_CLK frequency is half the internal system bus frequency.
The following timing numbers indicate when data is latched or driven onto the external bus, relative to the Mini-FlexBus output
clock (MB_CLK). All other timing relationships can be derived from these values.
Table 16. Mini-FlexBus AC Timing Specifications
Num
MB1
MB2
MB3
MB4
MB5
Characteristic
Frequency of Operation
Clock Period
Output Valid
Output Hold
Input Setup
Input Hold
Min
—
12.5
—
2
6
0
Max
80
—
8
—
—
—
Unit
MHz
ns
ns
ns
ns
ns
Notes
1
2
Freescale
1
2
Specification is valid for all MB_A[19:0], MB_D[7:0], MB_CS[1:0], MB_OE, MB_R/W, and MB_ALE.
Specification is valid for all MB_D[7:0].
MCF52259 ColdFire Microcontroller, Rev. 5
32
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相关代理商/技术参数 |
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|---|---|
| M52259EVB | 制造商:Freescale Semiconductor 功能描述:MCF5225x Evaluation Board |
| M5226P | 制造商:Panasonic Industrial Company 功能描述:IC |
| M5226PFP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:5-ELEMENT GRAPHIC EQUALIZER IC |
| M52277EVB | 功能描述:开发板和工具包 - 其他处理器 EVAL BOARD FOR THE M52277x 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: |
| M5228FP | 制造商:Panasonic Industrial Company 功能描述:IC |
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