MCF5272 参数 Datasheet PDF下载

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接口OTG243摩托罗拉MCF5272的ColdFire处理器

目录

1.

Introduction..........................................................................................................................1

1.1

系统概述.....................................................................................................1

1.2

References................................................................................................................2

1.3

Notation....................................................................................................................2

1.4

软件...................................................................................................................2

总线接口........................................................................................................................3

2.1

Recommendations....................................................................................................3

2.2

需要Procedure..................................................................................................3

2.3

硬件设计.....................................................................................................3

操作模式： / EXVBO和

TEST

....................................................................3

总线控制：

/ CS ， / RD ，

和

/WR.............................................................................4

地址总线：

A

8

:A

2

..................................................................................................4

数据总线：

D

31

:D

0

.....................................................................................................4

硬件复位：

/ RESET

.......................................................................................4

中断：

INT..........................................................................................................4

晶体振荡器和PLL ：

OSC

1

和

OSC

2

.........................................................5

DMA ：

DRQ

1

,

DACK

1,

EOT

1

,

DRQ

2

,

DACK

2

和

EOT

2

........................................5

远程唤醒：

唤醒

....................................................................................5

外部上拉：

RPU............................................................................................5

过电流：

/OC....................................................................................................6

电源ON ：

/ PO

........................................................................................................6

2.4

软件Configuration............................................................................................6

总线周期时序.....................................................................................................6

MCF5272芯片选择编程.............................................. ........................ 7

软件控制的OTG243复位.............................................. ........................ 10

软件控制的远程唤醒.............................................. ...................... 11

中断： MCF5272配置.............................................. ......................... 11

中断： OTG243配置.............................................. ........................... 12

USB系统初始化............................................... ....................................... 12

2.5

OTG243访问.....................................................................................................12

OTG243存储器映射............................................... ............................................ 12

OTG243寄存器访问............................................... ........................................ 14

OTG243片上存储器访问............................................ ............................ 14

USB端口电路..............................................................................................................15

3.1

OTG243端口2和端口3 ............................................ ......................................... 15

USB信号线...................................................................................................15

USB主机电源分配.............................................. .................................. 16

3.2

OTG243港1.......................................................................................................16

USB信号...........................................................................................................16

VBUS Circuit...........................................................................................................16

软件Considerations........................................................................................16

电源和接地.............................................................................................................16

参考设计Schematics............................................................................................17

OTG243模块uCevolution开发平台............................................ ... 17

2.

3.

4.

5.

6.