W90N740CD/W90N740CDG
表的内容 -
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4.
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6.
7.
概述......................................................................................................... 1
特点................................................................................................................................. 1
框图......................................................................................................................五
引脚配置............................................................................................................... 6
引脚分配..................................................................................................................... 7
PIN DESCRIPTION................................................................................................................... 10
功能说明................................................ ................................................. 14
7.1
7.2
ARM7TDMI CPU Core.................................................................................................. 14
系统Manager........................................................................................................... 15
7.2.1
7.2.2
7.2.3
7.2.4
7.2.5
7.2.6
7.2.7
Overview.........................................................................................................................15
系统内存Map......................................................................................................15
地址总线产生............................................... ................................................. 17
数据总线连接与外部存储器............................................ ....................... 18
总线仲裁................................................................................................................28
上电设置...........................................................................................................29
系统管理器控制寄存器映射............................................. ........................... 30
EBI Overview..................................................................................................................35
SDRAM控制器..........................................................................................................36
外部总线Mastership.................................................................................................41
EBI控制寄存器映射.............................................. ............................................... 41
片上RAM .................................................................................................................56
不可缓存区......................................................................................................56
指令Cache............................................................................................................56
数据Cache.....................................................................................................................59
写缓冲器....................................................................................................................61
EMC描述符............................................................................................................64
EMC寄存器映射............................................... .................................................. 0.70
NAT流程Flow........................................................................................................102
NATA寄存器Map....................................................................................................103
GDMA功能说明............................................... .......................................... 113
GDMA寄存器Map...................................................................................................114
7.3
外部总线接口（ EBI ） ............................................ ............................................. 35
7.3.1
7.3.2
7.3.3
7.3.4
7.4
缓存Controller........................................................................................................... 56
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.5
以太网MAC控制器（ EMC） ............................................ ....................................... 64
7.5.1
7.5.2
7.6
网络地址转换加速器（ NATA ） ........................................... .......... 101
7.6.1
7.6.2
7.7
GDMA控制器........................................................................................................ 113
7.7.1
7.7.2
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